diff --git a/vendor/golang.org/x/oauth2/LICENSE b/vendor/golang.org/x/oauth2/LICENSE
index 6a66aea..2a7cf70 100644
--- a/vendor/golang.org/x/oauth2/LICENSE
+++ b/vendor/golang.org/x/oauth2/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
+Copyright 2009 The Go Authors.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -10,7 +10,7 @@
 copyright notice, this list of conditions and the following disclaimer
 in the documentation and/or other materials provided with the
 distribution.
-   * Neither the name of Google Inc. nor the names of its
+   * Neither the name of Google LLC nor the names of its
 contributors may be used to endorse or promote products derived from
 this software without specific prior written permission.
 
diff --git a/vendor/golang.org/x/oauth2/README.md b/vendor/golang.org/x/oauth2/README.md
index 1473e12..48dbb9d 100644
--- a/vendor/golang.org/x/oauth2/README.md
+++ b/vendor/golang.org/x/oauth2/README.md
@@ -5,21 +5,12 @@
 
 oauth2 package contains a client implementation for OAuth 2.0 spec.
 
-## Installation
-
-~~~~
-go get golang.org/x/oauth2
-~~~~
-
-Or you can manually git clone the repository to
-`$(go env GOPATH)/src/golang.org/x/oauth2`.
-
 See pkg.go.dev for further documentation and examples.
 
 * [pkg.go.dev/golang.org/x/oauth2](https://pkg.go.dev/golang.org/x/oauth2)
 * [pkg.go.dev/golang.org/x/oauth2/google](https://pkg.go.dev/golang.org/x/oauth2/google)
 
-## Policy for new packages
+## Policy for new endpoints
 
 We no longer accept new provider-specific packages in this repo if all
 they do is add a single endpoint variable. If you just want to add a
@@ -29,8 +20,16 @@
 
 ## Report Issues / Send Patches
 
-This repository uses Gerrit for code changes. To learn how to submit changes to
-this repository, see https://golang.org/doc/contribute.html.
-
 The main issue tracker for the oauth2 repository is located at
 https://github.com/golang/oauth2/issues.
+
+This repository uses Gerrit for code changes. To learn how to submit changes to
+this repository, see https://go.dev/doc/contribute.
+
+The git repository is https://go.googlesource.com/oauth2.
+
+Note:
+
+* Excluding trivial changes, all contributions should be connected to an existing issue.
+* API changes must go through the [change proposal process](https://go.dev/s/proposal-process) before they can be accepted.
+* The code owners are listed at [dev.golang.org/owners](https://dev.golang.org/owners#:~:text=x/oauth2).
diff --git a/vendor/golang.org/x/oauth2/deviceauth.go b/vendor/golang.org/x/oauth2/deviceauth.go
new file mode 100644
index 0000000..e99c92f
--- /dev/null
+++ b/vendor/golang.org/x/oauth2/deviceauth.go
@@ -0,0 +1,198 @@
+package oauth2
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"golang.org/x/oauth2/internal"
+)
+
+// https://datatracker.ietf.org/doc/html/rfc8628#section-3.5
+const (
+	errAuthorizationPending = "authorization_pending"
+	errSlowDown             = "slow_down"
+	errAccessDenied         = "access_denied"
+	errExpiredToken         = "expired_token"
+)
+
+// DeviceAuthResponse describes a successful RFC 8628 Device Authorization Response
+// https://datatracker.ietf.org/doc/html/rfc8628#section-3.2
+type DeviceAuthResponse struct {
+	// DeviceCode
+	DeviceCode string `json:"device_code"`
+	// UserCode is the code the user should enter at the verification uri
+	UserCode string `json:"user_code"`
+	// VerificationURI is where user should enter the user code
+	VerificationURI string `json:"verification_uri"`
+	// VerificationURIComplete (if populated) includes the user code in the verification URI. This is typically shown to the user in non-textual form, such as a QR code.
+	VerificationURIComplete string `json:"verification_uri_complete,omitempty"`
+	// Expiry is when the device code and user code expire
+	Expiry time.Time `json:"expires_in,omitempty"`
+	// Interval is the duration in seconds that Poll should wait between requests
+	Interval int64 `json:"interval,omitempty"`
+}
+
+func (d DeviceAuthResponse) MarshalJSON() ([]byte, error) {
+	type Alias DeviceAuthResponse
+	var expiresIn int64
+	if !d.Expiry.IsZero() {
+		expiresIn = int64(time.Until(d.Expiry).Seconds())
+	}
+	return json.Marshal(&struct {
+		ExpiresIn int64 `json:"expires_in,omitempty"`
+		*Alias
+	}{
+		ExpiresIn: expiresIn,
+		Alias:     (*Alias)(&d),
+	})
+
+}
+
+func (c *DeviceAuthResponse) UnmarshalJSON(data []byte) error {
+	type Alias DeviceAuthResponse
+	aux := &struct {
+		ExpiresIn int64 `json:"expires_in"`
+		// workaround misspelling of verification_uri
+		VerificationURL string `json:"verification_url"`
+		*Alias
+	}{
+		Alias: (*Alias)(c),
+	}
+	if err := json.Unmarshal(data, &aux); err != nil {
+		return err
+	}
+	if aux.ExpiresIn != 0 {
+		c.Expiry = time.Now().UTC().Add(time.Second * time.Duration(aux.ExpiresIn))
+	}
+	if c.VerificationURI == "" {
+		c.VerificationURI = aux.VerificationURL
+	}
+	return nil
+}
+
+// DeviceAuth returns a device auth struct which contains a device code
+// and authorization information provided for users to enter on another device.
+func (c *Config) DeviceAuth(ctx context.Context, opts ...AuthCodeOption) (*DeviceAuthResponse, error) {
+	// https://datatracker.ietf.org/doc/html/rfc8628#section-3.1
+	v := url.Values{
+		"client_id": {c.ClientID},
+	}
+	if len(c.Scopes) > 0 {
+		v.Set("scope", strings.Join(c.Scopes, " "))
+	}
+	for _, opt := range opts {
+		opt.setValue(v)
+	}
+	return retrieveDeviceAuth(ctx, c, v)
+}
+
+func retrieveDeviceAuth(ctx context.Context, c *Config, v url.Values) (*DeviceAuthResponse, error) {
+	if c.Endpoint.DeviceAuthURL == "" {
+		return nil, errors.New("endpoint missing DeviceAuthURL")
+	}
+
+	req, err := http.NewRequest("POST", c.Endpoint.DeviceAuthURL, strings.NewReader(v.Encode()))
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	req.Header.Set("Accept", "application/json")
+
+	t := time.Now()
+	r, err := internal.ContextClient(ctx).Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	body, err := io.ReadAll(io.LimitReader(r.Body, 1<<20))
+	if err != nil {
+		return nil, fmt.Errorf("oauth2: cannot auth device: %v", err)
+	}
+	if code := r.StatusCode; code < 200 || code > 299 {
+		return nil, &RetrieveError{
+			Response: r,
+			Body:     body,
+		}
+	}
+
+	da := &DeviceAuthResponse{}
+	err = json.Unmarshal(body, &da)
+	if err != nil {
+		return nil, fmt.Errorf("unmarshal %s", err)
+	}
+
+	if !da.Expiry.IsZero() {
+		// Make a small adjustment to account for time taken by the request
+		da.Expiry = da.Expiry.Add(-time.Since(t))
+	}
+
+	return da, nil
+}
+
+// DeviceAccessToken polls the server to exchange a device code for a token.
+func (c *Config) DeviceAccessToken(ctx context.Context, da *DeviceAuthResponse, opts ...AuthCodeOption) (*Token, error) {
+	if !da.Expiry.IsZero() {
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithDeadline(ctx, da.Expiry)
+		defer cancel()
+	}
+
+	// https://datatracker.ietf.org/doc/html/rfc8628#section-3.4
+	v := url.Values{
+		"client_id":   {c.ClientID},
+		"grant_type":  {"urn:ietf:params:oauth:grant-type:device_code"},
+		"device_code": {da.DeviceCode},
+	}
+	if len(c.Scopes) > 0 {
+		v.Set("scope", strings.Join(c.Scopes, " "))
+	}
+	for _, opt := range opts {
+		opt.setValue(v)
+	}
+
+	// "If no value is provided, clients MUST use 5 as the default."
+	// https://datatracker.ietf.org/doc/html/rfc8628#section-3.2
+	interval := da.Interval
+	if interval == 0 {
+		interval = 5
+	}
+
+	ticker := time.NewTicker(time.Duration(interval) * time.Second)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		case <-ticker.C:
+			tok, err := retrieveToken(ctx, c, v)
+			if err == nil {
+				return tok, nil
+			}
+
+			e, ok := err.(*RetrieveError)
+			if !ok {
+				return nil, err
+			}
+			switch e.ErrorCode {
+			case errSlowDown:
+				// https://datatracker.ietf.org/doc/html/rfc8628#section-3.5
+				// "the interval MUST be increased by 5 seconds for this and all subsequent requests"
+				interval += 5
+				ticker.Reset(time.Duration(interval) * time.Second)
+			case errAuthorizationPending:
+				// Do nothing.
+			case errAccessDenied, errExpiredToken:
+				fallthrough
+			default:
+				return tok, err
+			}
+		}
+	}
+}
diff --git a/vendor/golang.org/x/oauth2/internal/client_appengine.go b/vendor/golang.org/x/oauth2/internal/client_appengine.go
deleted file mode 100644
index e1755d1..0000000
--- a/vendor/golang.org/x/oauth2/internal/client_appengine.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build appengine
-// +build appengine
-
-package internal
-
-import "google.golang.org/appengine/urlfetch"
-
-func init() {
-	appengineClientHook = urlfetch.Client
-}
diff --git a/vendor/golang.org/x/oauth2/internal/doc.go b/vendor/golang.org/x/oauth2/internal/doc.go
index 03265e8..8c7c475 100644
--- a/vendor/golang.org/x/oauth2/internal/doc.go
+++ b/vendor/golang.org/x/oauth2/internal/doc.go
@@ -2,5 +2,5 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Package internal contains support packages for oauth2 package.
+// Package internal contains support packages for [golang.org/x/oauth2].
 package internal
diff --git a/vendor/golang.org/x/oauth2/internal/oauth2.go b/vendor/golang.org/x/oauth2/internal/oauth2.go
index c0ab196..71ea6ad 100644
--- a/vendor/golang.org/x/oauth2/internal/oauth2.go
+++ b/vendor/golang.org/x/oauth2/internal/oauth2.go
@@ -13,8 +13,8 @@
 )
 
 // ParseKey converts the binary contents of a private key file
-// to an *rsa.PrivateKey. It detects whether the private key is in a
-// PEM container or not. If so, it extracts the the private key
+// to an [*rsa.PrivateKey]. It detects whether the private key is in a
+// PEM container or not. If so, it extracts the private key
 // from PEM container before conversion. It only supports PEM
 // containers with no passphrase.
 func ParseKey(key []byte) (*rsa.PrivateKey, error) {
diff --git a/vendor/golang.org/x/oauth2/internal/token.go b/vendor/golang.org/x/oauth2/internal/token.go
index b4723fc..8389f24 100644
--- a/vendor/golang.org/x/oauth2/internal/token.go
+++ b/vendor/golang.org/x/oauth2/internal/token.go
@@ -10,7 +10,6 @@
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math"
 	"mime"
 	"net/http"
@@ -18,6 +17,7 @@
 	"strconv"
 	"strings"
 	"sync"
+	"sync/atomic"
 	"time"
 )
 
@@ -25,9 +25,9 @@
 // the requests to access protected resources on the OAuth 2.0
 // provider's backend.
 //
-// This type is a mirror of oauth2.Token and exists to break
+// This type is a mirror of [golang.org/x/oauth2.Token] and exists to break
 // an otherwise-circular dependency. Other internal packages
-// should convert this Token into an oauth2.Token before use.
+// should convert this Token into an [golang.org/x/oauth2.Token] before use.
 type Token struct {
 	// AccessToken is the token that authorizes and authenticates
 	// the requests.
@@ -49,18 +49,31 @@
 	// mechanisms for that TokenSource will not be used.
 	Expiry time.Time
 
+	// ExpiresIn is the OAuth2 wire format "expires_in" field,
+	// which specifies how many seconds later the token expires,
+	// relative to an unknown time base approximately around "now".
+	// It is the application's responsibility to populate
+	// `Expiry` from `ExpiresIn` when required.
+	ExpiresIn int64 `json:"expires_in,omitempty"`
+
 	// Raw optionally contains extra metadata from the server
 	// when updating a token.
-	Raw interface{}
+	Raw any
 }
 
 // tokenJSON is the struct representing the HTTP response from OAuth2
-// providers returning a token in JSON form.
+// providers returning a token or error in JSON form.
+// https://datatracker.ietf.org/doc/html/rfc6749#section-5.1
 type tokenJSON struct {
 	AccessToken  string         `json:"access_token"`
 	TokenType    string         `json:"token_type"`
 	RefreshToken string         `json:"refresh_token"`
 	ExpiresIn    expirationTime `json:"expires_in"` // at least PayPal returns string, while most return number
+	// error fields
+	// https://datatracker.ietf.org/doc/html/rfc6749#section-5.2
+	ErrorCode        string `json:"error"`
+	ErrorDescription string `json:"error_description"`
+	ErrorURI         string `json:"error_uri"`
 }
 
 func (e *tokenJSON) expiry() (t time.Time) {
@@ -92,14 +105,6 @@
 	return nil
 }
 
-// RegisterBrokenAuthHeaderProvider previously did something. It is now a no-op.
-//
-// Deprecated: this function no longer does anything. Caller code that
-// wants to avoid potential extra HTTP requests made during
-// auto-probing of the provider's auth style should set
-// Endpoint.AuthStyle.
-func RegisterBrokenAuthHeaderProvider(tokenURL string) {}
-
 // AuthStyle is a copy of the golang.org/x/oauth2 package's AuthStyle type.
 type AuthStyle int
 
@@ -109,41 +114,65 @@
 	AuthStyleInHeader AuthStyle = 2
 )
 
-// authStyleCache is the set of tokenURLs we've successfully used via
+// LazyAuthStyleCache is a backwards compatibility compromise to let Configs
+// have a lazily-initialized AuthStyleCache.
+//
+// The two users of this, oauth2.Config and oauth2/clientcredentials.Config,
+// both would ideally just embed an unexported AuthStyleCache but because both
+// were historically allowed to be copied by value we can't retroactively add an
+// uncopyable Mutex to them.
+//
+// We could use an atomic.Pointer, but that was added recently enough (in Go
+// 1.18) that we'd break Go 1.17 users where the tests as of 2023-08-03
+// still pass. By using an atomic.Value, it supports both Go 1.17 and
+// copying by value, even if that's not ideal.
+type LazyAuthStyleCache struct {
+	v atomic.Value // of *AuthStyleCache
+}
+
+func (lc *LazyAuthStyleCache) Get() *AuthStyleCache {
+	if c, ok := lc.v.Load().(*AuthStyleCache); ok {
+		return c
+	}
+	c := new(AuthStyleCache)
+	if !lc.v.CompareAndSwap(nil, c) {
+		c = lc.v.Load().(*AuthStyleCache)
+	}
+	return c
+}
+
+type authStyleCacheKey struct {
+	url      string
+	clientID string
+}
+
+// AuthStyleCache is the set of tokenURLs we've successfully used via
 // RetrieveToken and which style auth we ended up using.
 // It's called a cache, but it doesn't (yet?) shrink. It's expected that
 // the set of OAuth2 servers a program contacts over time is fixed and
 // small.
-var authStyleCache struct {
-	sync.Mutex
-	m map[string]AuthStyle // keyed by tokenURL
-}
-
-// ResetAuthCache resets the global authentication style cache used
-// for AuthStyleUnknown token requests.
-func ResetAuthCache() {
-	authStyleCache.Lock()
-	defer authStyleCache.Unlock()
-	authStyleCache.m = nil
+type AuthStyleCache struct {
+	mu sync.Mutex
+	m  map[authStyleCacheKey]AuthStyle
 }
 
 // lookupAuthStyle reports which auth style we last used with tokenURL
 // when calling RetrieveToken and whether we have ever done so.
-func lookupAuthStyle(tokenURL string) (style AuthStyle, ok bool) {
-	authStyleCache.Lock()
-	defer authStyleCache.Unlock()
-	style, ok = authStyleCache.m[tokenURL]
+func (c *AuthStyleCache) lookupAuthStyle(tokenURL, clientID string) (style AuthStyle, ok bool) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	style, ok = c.m[authStyleCacheKey{tokenURL, clientID}]
 	return
 }
 
 // setAuthStyle adds an entry to authStyleCache, documented above.
-func setAuthStyle(tokenURL string, v AuthStyle) {
-	authStyleCache.Lock()
-	defer authStyleCache.Unlock()
-	if authStyleCache.m == nil {
-		authStyleCache.m = make(map[string]AuthStyle)
+func (c *AuthStyleCache) setAuthStyle(tokenURL, clientID string, v AuthStyle) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if c.m == nil {
+		c.m = make(map[authStyleCacheKey]AuthStyle)
 	}
-	authStyleCache.m[tokenURL] = v
+	c.m[authStyleCacheKey{tokenURL, clientID}] = v
 }
 
 // newTokenRequest returns a new *http.Request to retrieve a new token
@@ -183,10 +212,10 @@
 	return v2
 }
 
-func RetrieveToken(ctx context.Context, clientID, clientSecret, tokenURL string, v url.Values, authStyle AuthStyle) (*Token, error) {
-	needsAuthStyleProbe := authStyle == 0
+func RetrieveToken(ctx context.Context, clientID, clientSecret, tokenURL string, v url.Values, authStyle AuthStyle, styleCache *AuthStyleCache) (*Token, error) {
+	needsAuthStyleProbe := authStyle == AuthStyleUnknown
 	if needsAuthStyleProbe {
-		if style, ok := lookupAuthStyle(tokenURL); ok {
+		if style, ok := styleCache.lookupAuthStyle(tokenURL, clientID); ok {
 			authStyle = style
 			needsAuthStyleProbe = false
 		} else {
@@ -216,7 +245,7 @@
 		token, err = doTokenRoundTrip(ctx, req)
 	}
 	if needsAuthStyleProbe && err == nil {
-		setAuthStyle(tokenURL, authStyle)
+		styleCache.setAuthStyle(tokenURL, clientID, authStyle)
 	}
 	// Don't overwrite `RefreshToken` with an empty value
 	// if this was a token refreshing request.
@@ -231,26 +260,34 @@
 	if err != nil {
 		return nil, err
 	}
-	body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1<<20))
+	body, err := io.ReadAll(io.LimitReader(r.Body, 1<<20))
 	r.Body.Close()
 	if err != nil {
 		return nil, fmt.Errorf("oauth2: cannot fetch token: %v", err)
 	}
-	if code := r.StatusCode; code < 200 || code > 299 {
-		return nil, &RetrieveError{
-			Response: r,
-			Body:     body,
-		}
+
+	failureStatus := r.StatusCode < 200 || r.StatusCode > 299
+	retrieveError := &RetrieveError{
+		Response: r,
+		Body:     body,
+		// attempt to populate error detail below
 	}
 
 	var token *Token
 	content, _, _ := mime.ParseMediaType(r.Header.Get("Content-Type"))
 	switch content {
 	case "application/x-www-form-urlencoded", "text/plain":
+		// some endpoints return a query string
 		vals, err := url.ParseQuery(string(body))
 		if err != nil {
-			return nil, err
+			if failureStatus {
+				return nil, retrieveError
+			}
+			return nil, fmt.Errorf("oauth2: cannot parse response: %v", err)
 		}
+		retrieveError.ErrorCode = vals.Get("error")
+		retrieveError.ErrorDescription = vals.Get("error_description")
+		retrieveError.ErrorURI = vals.Get("error_uri")
 		token = &Token{
 			AccessToken:  vals.Get("access_token"),
 			TokenType:    vals.Get("token_type"),
@@ -265,28 +302,55 @@
 	default:
 		var tj tokenJSON
 		if err = json.Unmarshal(body, &tj); err != nil {
-			return nil, err
+			if failureStatus {
+				return nil, retrieveError
+			}
+			return nil, fmt.Errorf("oauth2: cannot parse json: %v", err)
 		}
+		retrieveError.ErrorCode = tj.ErrorCode
+		retrieveError.ErrorDescription = tj.ErrorDescription
+		retrieveError.ErrorURI = tj.ErrorURI
 		token = &Token{
 			AccessToken:  tj.AccessToken,
 			TokenType:    tj.TokenType,
 			RefreshToken: tj.RefreshToken,
 			Expiry:       tj.expiry(),
-			Raw:          make(map[string]interface{}),
+			ExpiresIn:    int64(tj.ExpiresIn),
+			Raw:          make(map[string]any),
 		}
 		json.Unmarshal(body, &token.Raw) // no error checks for optional fields
 	}
+	// according to spec, servers should respond status 400 in error case
+	// https://www.rfc-editor.org/rfc/rfc6749#section-5.2
+	// but some unorthodox servers respond 200 in error case
+	if failureStatus || retrieveError.ErrorCode != "" {
+		return nil, retrieveError
+	}
 	if token.AccessToken == "" {
 		return nil, errors.New("oauth2: server response missing access_token")
 	}
 	return token, nil
 }
 
+// mirrors oauth2.RetrieveError
 type RetrieveError struct {
-	Response *http.Response
-	Body     []byte
+	Response         *http.Response
+	Body             []byte
+	ErrorCode        string
+	ErrorDescription string
+	ErrorURI         string
 }
 
 func (r *RetrieveError) Error() string {
+	if r.ErrorCode != "" {
+		s := fmt.Sprintf("oauth2: %q", r.ErrorCode)
+		if r.ErrorDescription != "" {
+			s += fmt.Sprintf(" %q", r.ErrorDescription)
+		}
+		if r.ErrorURI != "" {
+			s += fmt.Sprintf(" %q", r.ErrorURI)
+		}
+		return s
+	}
 	return fmt.Sprintf("oauth2: cannot fetch token: %v\nResponse: %s", r.Response.Status, r.Body)
 }
diff --git a/vendor/golang.org/x/oauth2/internal/transport.go b/vendor/golang.org/x/oauth2/internal/transport.go
index 572074a..afc0aeb 100644
--- a/vendor/golang.org/x/oauth2/internal/transport.go
+++ b/vendor/golang.org/x/oauth2/internal/transport.go
@@ -9,8 +9,8 @@
 	"net/http"
 )
 
-// HTTPClient is the context key to use with golang.org/x/net/context's
-// WithValue function to associate an *http.Client value with a context.
+// HTTPClient is the context key to use with [context.WithValue]
+// to associate an [*http.Client] value with a context.
 var HTTPClient ContextKey
 
 // ContextKey is just an empty struct. It exists so HTTPClient can be
@@ -18,16 +18,11 @@
 // because nobody else can create a ContextKey, being unexported.
 type ContextKey struct{}
 
-var appengineClientHook func(context.Context) *http.Client
-
 func ContextClient(ctx context.Context) *http.Client {
 	if ctx != nil {
 		if hc, ok := ctx.Value(HTTPClient).(*http.Client); ok {
 			return hc
 		}
 	}
-	if appengineClientHook != nil {
-		return appengineClientHook(ctx)
-	}
 	return http.DefaultClient
 }
diff --git a/vendor/golang.org/x/oauth2/oauth2.go b/vendor/golang.org/x/oauth2/oauth2.go
index 291df5c..3e3b630 100644
--- a/vendor/golang.org/x/oauth2/oauth2.go
+++ b/vendor/golang.org/x/oauth2/oauth2.go
@@ -9,21 +9,21 @@
 package oauth2 // import "golang.org/x/oauth2"
 
 import (
-	"bytes"
 	"context"
 	"errors"
 	"net/http"
 	"net/url"
 	"strings"
 	"sync"
+	"time"
 
 	"golang.org/x/oauth2/internal"
 )
 
 // NoContext is the default context you should supply if not using
-// your own context.Context (see https://golang.org/x/net/context).
+// your own [context.Context].
 //
-// Deprecated: Use context.Background() or context.TODO() instead.
+// Deprecated: Use [context.Background] or [context.TODO] instead.
 var NoContext = context.TODO()
 
 // RegisterBrokenAuthHeaderProvider previously did something. It is now a no-op.
@@ -36,8 +36,8 @@
 
 // Config describes a typical 3-legged OAuth2 flow, with both the
 // client application information and the server's endpoint URLs.
-// For the client credentials 2-legged OAuth2 flow, see the clientcredentials
-// package (https://golang.org/x/oauth2/clientcredentials).
+// For the client credentials 2-legged OAuth2 flow, see the
+// [golang.org/x/oauth2/clientcredentials] package.
 type Config struct {
 	// ClientID is the application's ID.
 	ClientID string
@@ -45,7 +45,7 @@
 	// ClientSecret is the application's secret.
 	ClientSecret string
 
-	// Endpoint contains the resource server's token endpoint
+	// Endpoint contains the authorization server's token endpoint
 	// URLs. These are constants specific to each server and are
 	// often available via site-specific packages, such as
 	// google.Endpoint or github.Endpoint.
@@ -55,8 +55,12 @@
 	// the OAuth flow, after the resource owner's URLs.
 	RedirectURL string
 
-	// Scope specifies optional requested permissions.
+	// Scopes specifies optional requested permissions.
 	Scopes []string
+
+	// authStyleCache caches which auth style to use when Endpoint.AuthStyle is
+	// the zero value (AuthStyleAutoDetect).
+	authStyleCache internal.LazyAuthStyleCache
 }
 
 // A TokenSource is anything that can return a token.
@@ -70,8 +74,9 @@
 // Endpoint represents an OAuth 2.0 provider's authorization and token
 // endpoint URLs.
 type Endpoint struct {
-	AuthURL  string
-	TokenURL string
+	AuthURL       string
+	DeviceAuthURL string
+	TokenURL      string
 
 	// AuthStyle optionally specifies how the endpoint wants the
 	// client ID & client secret sent. The zero value means to
@@ -129,7 +134,7 @@
 
 func (p setParam) setValue(m url.Values) { m.Set(p.k, p.v) }
 
-// SetAuthURLParam builds an AuthCodeOption which passes key/value parameters
+// SetAuthURLParam builds an [AuthCodeOption] which passes key/value parameters
 // to a provider's authorization endpoint.
 func SetAuthURLParam(key, value string) AuthCodeOption {
 	return setParam{key, value}
@@ -138,17 +143,21 @@
 // AuthCodeURL returns a URL to OAuth 2.0 provider's consent page
 // that asks for permissions for the required scopes explicitly.
 //
-// State is a token to protect the user from CSRF attacks. You must
-// always provide a non-empty string and validate that it matches the
-// the state query parameter on your redirect callback.
-// See http://tools.ietf.org/html/rfc6749#section-10.12 for more info.
+// State is an opaque value used by the client to maintain state between the
+// request and callback. The authorization server includes this value when
+// redirecting the user agent back to the client.
 //
-// Opts may include AccessTypeOnline or AccessTypeOffline, as well
-// as ApprovalForce.
-// It can also be used to pass the PKCE challenge.
-// See https://www.oauth.com/oauth2-servers/pkce/ for more info.
+// Opts may include [AccessTypeOnline] or [AccessTypeOffline], as well
+// as [ApprovalForce].
+//
+// To protect against CSRF attacks, opts should include a PKCE challenge
+// (S256ChallengeOption). Not all servers support PKCE. An alternative is to
+// generate a random state parameter and verify it after exchange.
+// See https://datatracker.ietf.org/doc/html/rfc6749#section-10.12 (predating
+// PKCE), https://www.oauth.com/oauth2-servers/pkce/ and
+// https://www.ietf.org/archive/id/draft-ietf-oauth-v2-1-09.html#name-cross-site-request-forgery (describing both approaches)
 func (c *Config) AuthCodeURL(state string, opts ...AuthCodeOption) string {
-	var buf bytes.Buffer
+	var buf strings.Builder
 	buf.WriteString(c.Endpoint.AuthURL)
 	v := url.Values{
 		"response_type": {"code"},
@@ -161,7 +170,6 @@
 		v.Set("scope", strings.Join(c.Scopes, " "))
 	}
 	if state != "" {
-		// TODO(light): Docs say never to omit state; don't allow empty.
 		v.Set("state", state)
 	}
 	for _, opt := range opts {
@@ -185,7 +193,7 @@
 // and when other authorization grant types are not available."
 // See https://tools.ietf.org/html/rfc6749#section-4.3 for more info.
 //
-// The provided context optionally controls which HTTP client is used. See the HTTPClient variable.
+// The provided context optionally controls which HTTP client is used. See the [HTTPClient] variable.
 func (c *Config) PasswordCredentialsToken(ctx context.Context, username, password string) (*Token, error) {
 	v := url.Values{
 		"grant_type": {"password"},
@@ -203,13 +211,14 @@
 // It is used after a resource provider redirects the user back
 // to the Redirect URI (the URL obtained from AuthCodeURL).
 //
-// The provided context optionally controls which HTTP client is used. See the HTTPClient variable.
+// The provided context optionally controls which HTTP client is used. See the [HTTPClient] variable.
 //
-// The code will be in the *http.Request.FormValue("code"). Before
-// calling Exchange, be sure to validate FormValue("state").
+// The code will be in the [http.Request.FormValue]("code"). Before
+// calling Exchange, be sure to validate [http.Request.FormValue]("state") if you are
+// using it to protect against CSRF attacks.
 //
-// Opts may include the PKCE verifier code if previously used in AuthCodeURL.
-// See https://www.oauth.com/oauth2-servers/pkce/ for more info.
+// If using PKCE to protect against CSRF attacks, opts should include a
+// VerifierOption.
 func (c *Config) Exchange(ctx context.Context, code string, opts ...AuthCodeOption) (*Token, error) {
 	v := url.Values{
 		"grant_type": {"authorization_code"},
@@ -232,10 +241,10 @@
 	return NewClient(ctx, c.TokenSource(ctx, t))
 }
 
-// TokenSource returns a TokenSource that returns t until t expires,
+// TokenSource returns a [TokenSource] that returns t until t expires,
 // automatically refreshing it as necessary using the provided context.
 //
-// Most users will use Config.Client instead.
+// Most users will use [Config.Client] instead.
 func (c *Config) TokenSource(ctx context.Context, t *Token) TokenSource {
 	tkr := &tokenRefresher{
 		ctx:  ctx,
@@ -250,7 +259,7 @@
 	}
 }
 
-// tokenRefresher is a TokenSource that makes "grant_type"=="refresh_token"
+// tokenRefresher is a TokenSource that makes "grant_type=refresh_token"
 // HTTP requests to renew a token using a RefreshToken.
 type tokenRefresher struct {
 	ctx          context.Context // used to get HTTP requests
@@ -278,7 +287,7 @@
 	if tf.refreshToken != tk.RefreshToken {
 		tf.refreshToken = tk.RefreshToken
 	}
-	return tk, err
+	return tk, nil
 }
 
 // reuseTokenSource is a TokenSource that holds a single token in memory
@@ -290,11 +299,12 @@
 
 	mu sync.Mutex // guards t
 	t  *Token
+
+	expiryDelta time.Duration
 }
 
 // Token returns the current token if it's still valid, else will
-// refresh the current token (using r.Context for HTTP client
-// information) and return the new one.
+// refresh the current token and return the new one.
 func (s *reuseTokenSource) Token() (*Token, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
@@ -305,11 +315,12 @@
 	if err != nil {
 		return nil, err
 	}
+	t.expiryDelta = s.expiryDelta
 	s.t = t
 	return t, nil
 }
 
-// StaticTokenSource returns a TokenSource that always returns the same token.
+// StaticTokenSource returns a [TokenSource] that always returns the same token.
 // Because the provided token t is never refreshed, StaticTokenSource is only
 // useful for tokens that never expire.
 func StaticTokenSource(t *Token) TokenSource {
@@ -325,16 +336,16 @@
 	return s.t, nil
 }
 
-// HTTPClient is the context key to use with golang.org/x/net/context's
-// WithValue function to associate an *http.Client value with a context.
+// HTTPClient is the context key to use with [context.WithValue]
+// to associate a [*http.Client] value with a context.
 var HTTPClient internal.ContextKey
 
-// NewClient creates an *http.Client from a Context and TokenSource.
+// NewClient creates an [*http.Client] from a [context.Context] and [TokenSource].
 // The returned client is not valid beyond the lifetime of the context.
 //
-// Note that if a custom *http.Client is provided via the Context it
+// Note that if a custom [*http.Client] is provided via the [context.Context] it
 // is used only for token acquisition and is not used to configure the
-// *http.Client returned from NewClient.
+// [*http.Client] returned from NewClient.
 //
 // As a special case, if src is nil, a non-OAuth2 client is returned
 // using the provided context. This exists to support related OAuth2
@@ -343,15 +354,19 @@
 	if src == nil {
 		return internal.ContextClient(ctx)
 	}
+	cc := internal.ContextClient(ctx)
 	return &http.Client{
 		Transport: &Transport{
-			Base:   internal.ContextClient(ctx).Transport,
+			Base:   cc.Transport,
 			Source: ReuseTokenSource(nil, src),
 		},
+		CheckRedirect: cc.CheckRedirect,
+		Jar:           cc.Jar,
+		Timeout:       cc.Timeout,
 	}
 }
 
-// ReuseTokenSource returns a TokenSource which repeatedly returns the
+// ReuseTokenSource returns a [TokenSource] which repeatedly returns the
 // same token as long as it's valid, starting with t.
 // When its cached token is invalid, a new token is obtained from src.
 //
@@ -359,10 +374,10 @@
 // (such as a file on disk) between runs of a program, rather than
 // obtaining new tokens unnecessarily.
 //
-// The initial token t may be nil, in which case the TokenSource is
+// The initial token t may be nil, in which case the [TokenSource] is
 // wrapped in a caching version if it isn't one already. This also
 // means it's always safe to wrap ReuseTokenSource around any other
-// TokenSource without adverse effects.
+// [TokenSource] without adverse effects.
 func ReuseTokenSource(t *Token, src TokenSource) TokenSource {
 	// Don't wrap a reuseTokenSource in itself. That would work,
 	// but cause an unnecessary number of mutex operations.
@@ -379,3 +394,30 @@
 		new: src,
 	}
 }
+
+// ReuseTokenSourceWithExpiry returns a [TokenSource] that acts in the same manner as the
+// [TokenSource] returned by [ReuseTokenSource], except the expiry buffer is
+// configurable. The expiration time of a token is calculated as
+// t.Expiry.Add(-earlyExpiry).
+func ReuseTokenSourceWithExpiry(t *Token, src TokenSource, earlyExpiry time.Duration) TokenSource {
+	// Don't wrap a reuseTokenSource in itself. That would work,
+	// but cause an unnecessary number of mutex operations.
+	// Just build the equivalent one.
+	if rt, ok := src.(*reuseTokenSource); ok {
+		if t == nil {
+			// Just use it directly, but set the expiryDelta to earlyExpiry,
+			// so the behavior matches what the user expects.
+			rt.expiryDelta = earlyExpiry
+			return rt
+		}
+		src = rt.new
+	}
+	if t != nil {
+		t.expiryDelta = earlyExpiry
+	}
+	return &reuseTokenSource{
+		t:           t,
+		new:         src,
+		expiryDelta: earlyExpiry,
+	}
+}
diff --git a/vendor/golang.org/x/oauth2/pkce.go b/vendor/golang.org/x/oauth2/pkce.go
new file mode 100644
index 0000000..cea8374
--- /dev/null
+++ b/vendor/golang.org/x/oauth2/pkce.go
@@ -0,0 +1,69 @@
+// Copyright 2023 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package oauth2
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"net/url"
+)
+
+const (
+	codeChallengeKey       = "code_challenge"
+	codeChallengeMethodKey = "code_challenge_method"
+	codeVerifierKey        = "code_verifier"
+)
+
+// GenerateVerifier generates a PKCE code verifier with 32 octets of randomness.
+// This follows recommendations in RFC 7636.
+//
+// A fresh verifier should be generated for each authorization.
+// The resulting verifier should be passed to [Config.AuthCodeURL] or [Config.DeviceAuth]
+// with [S256ChallengeOption], and to [Config.Exchange] or [Config.DeviceAccessToken]
+// with [VerifierOption].
+func GenerateVerifier() string {
+	// "RECOMMENDED that the output of a suitable random number generator be
+	// used to create a 32-octet sequence.  The octet sequence is then
+	// base64url-encoded to produce a 43-octet URL-safe string to use as the
+	// code verifier."
+	// https://datatracker.ietf.org/doc/html/rfc7636#section-4.1
+	data := make([]byte, 32)
+	if _, err := rand.Read(data); err != nil {
+		panic(err)
+	}
+	return base64.RawURLEncoding.EncodeToString(data)
+}
+
+// VerifierOption returns a PKCE code verifier [AuthCodeOption]. It should only be
+// passed to [Config.Exchange] or [Config.DeviceAccessToken].
+func VerifierOption(verifier string) AuthCodeOption {
+	return setParam{k: codeVerifierKey, v: verifier}
+}
+
+// S256ChallengeFromVerifier returns a PKCE code challenge derived from verifier with method S256.
+//
+// Prefer to use [S256ChallengeOption] where possible.
+func S256ChallengeFromVerifier(verifier string) string {
+	sha := sha256.Sum256([]byte(verifier))
+	return base64.RawURLEncoding.EncodeToString(sha[:])
+}
+
+// S256ChallengeOption derives a PKCE code challenge derived from verifier with
+// method S256. It should be passed to [Config.AuthCodeURL] or [Config.DeviceAuth]
+// only.
+func S256ChallengeOption(verifier string) AuthCodeOption {
+	return challengeOption{
+		challenge_method: "S256",
+		challenge:        S256ChallengeFromVerifier(verifier),
+	}
+}
+
+type challengeOption struct{ challenge_method, challenge string }
+
+func (p challengeOption) setValue(m url.Values) {
+	m.Set(codeChallengeMethodKey, p.challenge_method)
+	m.Set(codeChallengeKey, p.challenge)
+}
diff --git a/vendor/golang.org/x/oauth2/token.go b/vendor/golang.org/x/oauth2/token.go
index 8227203..239ec32 100644
--- a/vendor/golang.org/x/oauth2/token.go
+++ b/vendor/golang.org/x/oauth2/token.go
@@ -16,10 +16,10 @@
 	"golang.org/x/oauth2/internal"
 )
 
-// expiryDelta determines how earlier a token should be considered
+// defaultExpiryDelta determines how earlier a token should be considered
 // expired than its actual expiration time. It is used to avoid late
 // expirations due to client-server time mismatches.
-const expiryDelta = 10 * time.Second
+const defaultExpiryDelta = 10 * time.Second
 
 // Token represents the credentials used to authorize
 // the requests to access protected resources on the OAuth 2.0
@@ -44,14 +44,26 @@
 
 	// Expiry is the optional expiration time of the access token.
 	//
-	// If zero, TokenSource implementations will reuse the same
+	// If zero, [TokenSource] implementations will reuse the same
 	// token forever and RefreshToken or equivalent
 	// mechanisms for that TokenSource will not be used.
 	Expiry time.Time `json:"expiry,omitempty"`
 
+	// ExpiresIn is the OAuth2 wire format "expires_in" field,
+	// which specifies how many seconds later the token expires,
+	// relative to an unknown time base approximately around "now".
+	// It is the application's responsibility to populate
+	// `Expiry` from `ExpiresIn` when required.
+	ExpiresIn int64 `json:"expires_in,omitempty"`
+
 	// raw optionally contains extra metadata from the server
 	// when updating a token.
-	raw interface{}
+	raw any
+
+	// expiryDelta is used to calculate when a token is considered
+	// expired, by subtracting from Expiry. If zero, defaultExpiryDelta
+	// is used.
+	expiryDelta time.Duration
 }
 
 // Type returns t.TokenType if non-empty, else "Bearer".
@@ -74,16 +86,16 @@
 // SetAuthHeader sets the Authorization header to r using the access
 // token in t.
 //
-// This method is unnecessary when using Transport or an HTTP Client
+// This method is unnecessary when using [Transport] or an HTTP Client
 // returned by this package.
 func (t *Token) SetAuthHeader(r *http.Request) {
 	r.Header.Set("Authorization", t.Type()+" "+t.AccessToken)
 }
 
-// WithExtra returns a new Token that's a clone of t, but using the
+// WithExtra returns a new [Token] that's a clone of t, but using the
 // provided raw extra map. This is only intended for use by packages
 // implementing derivative OAuth2 flows.
-func (t *Token) WithExtra(extra interface{}) *Token {
+func (t *Token) WithExtra(extra any) *Token {
 	t2 := new(Token)
 	*t2 = *t
 	t2.raw = extra
@@ -93,8 +105,8 @@
 // Extra returns an extra field.
 // Extra fields are key-value pairs returned by the server as a
 // part of the token retrieval response.
-func (t *Token) Extra(key string) interface{} {
-	if raw, ok := t.raw.(map[string]interface{}); ok {
+func (t *Token) Extra(key string) any {
+	if raw, ok := t.raw.(map[string]any); ok {
 		return raw[key]
 	}
 
@@ -127,6 +139,11 @@
 	if t.Expiry.IsZero() {
 		return false
 	}
+
+	expiryDelta := defaultExpiryDelta
+	if t.expiryDelta != 0 {
+		expiryDelta = t.expiryDelta
+	}
 	return t.Expiry.Round(0).Add(-expiryDelta).Before(timeNow())
 }
 
@@ -146,15 +163,16 @@
 		TokenType:    t.TokenType,
 		RefreshToken: t.RefreshToken,
 		Expiry:       t.Expiry,
+		ExpiresIn:    t.ExpiresIn,
 		raw:          t.Raw,
 	}
 }
 
 // retrieveToken takes a *Config and uses that to retrieve an *internal.Token.
 // This token is then mapped from *internal.Token into an *oauth2.Token which is returned along
-// with an error..
+// with an error.
 func retrieveToken(ctx context.Context, c *Config, v url.Values) (*Token, error) {
-	tk, err := internal.RetrieveToken(ctx, c.ClientID, c.ClientSecret, c.Endpoint.TokenURL, v, internal.AuthStyle(c.Endpoint.AuthStyle))
+	tk, err := internal.RetrieveToken(ctx, c.ClientID, c.ClientSecret, c.Endpoint.TokenURL, v, internal.AuthStyle(c.Endpoint.AuthStyle), c.authStyleCache.Get())
 	if err != nil {
 		if rErr, ok := err.(*internal.RetrieveError); ok {
 			return nil, (*RetrieveError)(rErr)
@@ -165,14 +183,31 @@
 }
 
 // RetrieveError is the error returned when the token endpoint returns a
-// non-2XX HTTP status code.
+// non-2XX HTTP status code or populates RFC 6749's 'error' parameter.
+// https://datatracker.ietf.org/doc/html/rfc6749#section-5.2
 type RetrieveError struct {
 	Response *http.Response
 	// Body is the body that was consumed by reading Response.Body.
 	// It may be truncated.
 	Body []byte
+	// ErrorCode is RFC 6749's 'error' parameter.
+	ErrorCode string
+	// ErrorDescription is RFC 6749's 'error_description' parameter.
+	ErrorDescription string
+	// ErrorURI is RFC 6749's 'error_uri' parameter.
+	ErrorURI string
 }
 
 func (r *RetrieveError) Error() string {
+	if r.ErrorCode != "" {
+		s := fmt.Sprintf("oauth2: %q", r.ErrorCode)
+		if r.ErrorDescription != "" {
+			s += fmt.Sprintf(" %q", r.ErrorDescription)
+		}
+		if r.ErrorURI != "" {
+			s += fmt.Sprintf(" %q", r.ErrorURI)
+		}
+		return s
+	}
 	return fmt.Sprintf("oauth2: cannot fetch token: %v\nResponse: %s", r.Response.Status, r.Body)
 }
diff --git a/vendor/golang.org/x/oauth2/transport.go b/vendor/golang.org/x/oauth2/transport.go
index 9065791..8bbebba 100644
--- a/vendor/golang.org/x/oauth2/transport.go
+++ b/vendor/golang.org/x/oauth2/transport.go
@@ -11,12 +11,12 @@
 	"sync"
 )
 
-// Transport is an http.RoundTripper that makes OAuth 2.0 HTTP requests,
-// wrapping a base RoundTripper and adding an Authorization header
-// with a token from the supplied Sources.
+// Transport is an [http.RoundTripper] that makes OAuth 2.0 HTTP requests,
+// wrapping a base [http.RoundTripper] and adding an Authorization header
+// with a token from the supplied [TokenSource].
 //
 // Transport is a low-level mechanism. Most code will use the
-// higher-level Config.Client method instead.
+// higher-level [Config.Client] method instead.
 type Transport struct {
 	// Source supplies the token to add to outgoing requests'
 	// Authorization headers.
@@ -47,7 +47,7 @@
 		return nil, err
 	}
 
-	req2 := cloneRequest(req) // per RoundTripper contract
+	req2 := req.Clone(req.Context())
 	token.SetAuthHeader(req2)
 
 	// req.Body is assumed to be closed by the base RoundTripper.
@@ -73,17 +73,3 @@
 	}
 	return http.DefaultTransport
 }
-
-// cloneRequest returns a clone of the provided *http.Request.
-// The clone is a shallow copy of the struct and its Header map.
-func cloneRequest(r *http.Request) *http.Request {
-	// shallow copy of the struct
-	r2 := new(http.Request)
-	*r2 = *r
-	// deep copy of the Header
-	r2.Header = make(http.Header, len(r.Header))
-	for k, s := range r.Header {
-		r2.Header[k] = append([]string(nil), s...)
-	}
-	return r2
-}