diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/.travis.yml b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/.travis.yml
deleted file mode 100644
index fc198d8..0000000
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/.travis.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-sudo: false
-language: go
-go:
-  - 1.13.x
-  - 1.14.x
-  - 1.15.x
-
-env:
-  global:
-    - GO111MODULE=on
-
-script:
- - make test
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/CHANGELOG.md b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/CHANGELOG.md
deleted file mode 100644
index 6eeb7e2..0000000
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/CHANGELOG.md
+++ /dev/null
@@ -1,51 +0,0 @@
-# Changelog
-All notable changes to this project will be documented in this file.
-
-The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
-and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
-
-Types of changes:
-- `Added` for new features.
-- `Changed` for changes in existing functionality.
-- `Deprecated` for soon-to-be removed features.
-- `Removed` for now removed features.
-- `Fixed` for any bug fixes.
-- `Security` in case of vulnerabilities.
-
-## [Unreleased]
-
-### Added
-
-- [#223](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/223) Add go-kit logging middleware - [adrien-f](https://github.com/adrien-f)
-
-## [v1.1.0] - 2019-09-12
-### Added
-- [#226](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/226) Support for go modules.
-- [#221](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/221) logging/zap add support for gRPC LoggerV2  - [kush-patel-hs](https://github.com/kush-patel-hs)
-- [#181](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/181) Rate Limit support - [ceshihao](https://github.com/ceshihao)
-- [#161](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/161) Retry on server stream call - [lonnblad](https://github.com/lonnblad)
-- [#152](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/152) Exponential backoff functions - [polyfloyd](https://github.com/polyfloyd)
-- [#147](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/147) Jaeger support for ctxtags extraction - [vporoshok](https://github.com/vporoshok)
-- [#184](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/184) ctxTags identifies if the call was sampled
-
-### Deprecated
-- [#201](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/201) `golang.org/x/net/context` - [houz42](https://github.com/houz42)
-- [#183](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/183) Documentation Generation in favour of <godoc.org>.
-
-### Fixed
-- [172](https://github.com/grpc-ecosystem/go-grpc-middleware/pull/172) Passing ctx into retry and recover - [johanbrandhorst](https://github.com/johanbrandhorst)
-- Numerious documentation fixes.
-
-## v1.0.0 - 2018-05-08
-### Added
-- grpc_auth 
-- grpc_ctxtags
-- grpc_zap
-- grpc_logrus
-- grpc_opentracing
-- grpc_retry
-- grpc_validator
-- grpc_recovery
-
-[Unreleased]: https://github.com/grpc-ecosystem/go-grpc-middleware/compare/v1.1.0...HEAD 
-[v1.1.0]: https://github.com/grpc-ecosystem/go-grpc-middleware/compare/v1.0.0...v1.1.0 
diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/README.md b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/README.md
index 814e155..a12b409 100644
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/README.md
+++ b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/README.md
@@ -7,16 +7,23 @@
 [![codecov](https://codecov.io/gh/grpc-ecosystem/go-grpc-middleware/branch/master/graph/badge.svg)](https://codecov.io/gh/grpc-ecosystem/go-grpc-middleware)
 [![Apache 2.0 License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](LICENSE)
 [![quality: production](https://img.shields.io/badge/quality-production-orange.svg)](#status)
-[![Slack](https://img.shields.io/badge/slack-%23grpc--middleware-brightgreen)](https://slack.com/share/IRUQCFC23/9Tm7hxRFVKKNoajQfMOcUiIk/enQtODc4ODI4NTIyMDcxLWM5NDA0ZTE4Njg5YjRjYWZkMTI5MzQwNDY3YzBjMzE1YzdjOGM5ZjI1NDNiM2JmNzI2YjM5ODE5OTRiNTEyOWE)
+[![Slack](https://img.shields.io/badge/slack-%23grpc--middleware-brightgreen)](https://gophers.slack.com/archives/CNJL30P4P)
 
 [gRPC Go](https://github.com/grpc/grpc-go) Middleware: interceptors, helpers, utilities.
 
+## ⚠️  Status
+
+Version [v2](https://github.com/grpc-ecosystem/go-grpc-middleware/tree/v2) is about to be released, with migration guide, which will replace v1. Try v2 and give us feedback! 
+
+Version v1 is currently in deprecation mode, which means only critical and safety bug fixes will be merged.
+
+
 ## Middleware
 
 [gRPC Go](https://github.com/grpc/grpc-go) recently acquired support for
-Interceptors, i.e. [middleware](https://medium.com/@matryer/writing-middleware-in-golang-and-how-go-makes-it-so-much-fun-4375c1246e81#.gv7tdlghs) 
+Interceptors, i.e. [middleware](https://medium.com/@matryer/writing-middleware-in-golang-and-how-go-makes-it-so-much-fun-4375c1246e81#.gv7tdlghs)
 that is executed either on the gRPC Server before the request is passed onto the user's application logic, or on the gRPC client around the user call. It is a perfect way to implement
-common patterns: auth, logging, message, validation, retries or monitoring.
+common patterns: auth, logging, message, validation, retries, or monitoring.
 
 These are generic building blocks that make it easy to build multiple microservices easily.
 The purpose of this repository is to act as a go-to point for such reusable functionality. It contains
@@ -29,57 +36,57 @@
 
 myServer := grpc.NewServer(
     grpc.StreamInterceptor(grpc_middleware.ChainStreamServer(
-        grpc_recovery.StreamServerInterceptor(),
         grpc_ctxtags.StreamServerInterceptor(),
         grpc_opentracing.StreamServerInterceptor(),
         grpc_prometheus.StreamServerInterceptor,
         grpc_zap.StreamServerInterceptor(zapLogger),
         grpc_auth.StreamServerInterceptor(myAuthFunction),
+        grpc_recovery.StreamServerInterceptor(),
     )),
     grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(
-        grpc_recovery.UnaryServerInterceptor(),
         grpc_ctxtags.UnaryServerInterceptor(),
         grpc_opentracing.UnaryServerInterceptor(),
         grpc_prometheus.UnaryServerInterceptor,
         grpc_zap.UnaryServerInterceptor(zapLogger),
         grpc_auth.UnaryServerInterceptor(myAuthFunction),
+        grpc_recovery.UnaryServerInterceptor(),
     )),
 )
 ```
 
 ## Interceptors
 
-*Please send a PR to add new interceptors or middleware to this list*
+_Please send a PR to add new interceptors or middleware to this list_
 
 #### Auth
-   * [`grpc_auth`](auth) - a customizable (via `AuthFunc`) piece of auth middleware 
+
+- [`grpc_auth`](auth) - a customizable (via `AuthFunc`) piece of auth middleware
 
 #### Logging
-   * [`grpc_ctxtags`](tags/) - a library that adds a `Tag` map to context, with data populated from request body
-   * [`grpc_zap`](logging/zap/) - integration of [zap](https://github.com/uber-go/zap) logging library into gRPC handlers.
-   * [`grpc_logrus`](logging/logrus/) - integration of [logrus](https://github.com/sirupsen/logrus) logging library into gRPC handlers.
-   * [`grpc_kit`](logging/kit/) - integration of [go-kit](https://github.com/go-kit/kit/tree/master/log) logging library into gRPC handlers.
-   * [`grpc_grpc_logsettable`](logging/settable/) - a wrapper around `grpclog.LoggerV2` that allows to replace loggers in runtime (thread-safe).
+
+- [`grpc_ctxtags`](tags/) - a library that adds a `Tag` map to context, with data populated from request body
+- [`grpc_zap`](logging/zap/) - integration of [zap](https://github.com/uber-go/zap) logging library into gRPC handlers.
+- [`grpc_logrus`](logging/logrus/) - integration of [logrus](https://github.com/sirupsen/logrus) logging library into gRPC handlers.
+- [`grpc_kit`](logging/kit/) - integration of [go-kit/log](https://github.com/go-kit/log) logging library into gRPC handlers.
+- [`grpc_grpc_logsettable`](logging/settable/) - a wrapper around `grpclog.LoggerV2` that allows to replace loggers in runtime (thread-safe).
 
 #### Monitoring
-   * [`grpc_prometheus`⚡](https://github.com/grpc-ecosystem/go-grpc-prometheus) - Prometheus client-side and server-side monitoring middleware
-   * [`otgrpc`⚡](https://github.com/grpc-ecosystem/grpc-opentracing/tree/master/go/otgrpc) - [OpenTracing](http://opentracing.io/) client-side and server-side interceptors
-   * [`grpc_opentracing`](tracing/opentracing) - [OpenTracing](http://opentracing.io/) client-side and server-side interceptors with support for streaming and handler-returned tags
+
+- [`grpc_prometheus`⚡](https://github.com/grpc-ecosystem/go-grpc-prometheus) - Prometheus client-side and server-side monitoring middleware
+- [`otgrpc`⚡](https://github.com/grpc-ecosystem/grpc-opentracing/tree/master/go/otgrpc) - [OpenTracing](http://opentracing.io/) client-side and server-side interceptors
+- [`grpc_opentracing`](tracing/opentracing) - [OpenTracing](http://opentracing.io/) client-side and server-side interceptors with support for streaming and handler-returned tags
+- [`otelgrpc`](https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation/google.golang.org/grpc/otelgrpc) - [OpenTelemetry](https://opentelemetry.io/) client-side and server-side interceptors
 
 #### Client
-   * [`grpc_retry`](retry/) - a generic gRPC response code retry mechanism, client-side middleware
+
+- [`grpc_retry`](retry/) - a generic gRPC response code retry mechanism, client-side middleware
 
 #### Server
-   * [`grpc_validator`](validator/) - codegen inbound message validation from `.proto` options
-   * [`grpc_recovery`](recovery/) - turn panics into gRPC errors
-   * [`ratelimit`](ratelimit/) - grpc rate limiting by your own limiter
 
+- [`grpc_validator`](validator/) - codegen inbound message validation from `.proto` options
+- [`grpc_recovery`](recovery/) - turn panics into gRPC errors
+- [`ratelimit`](ratelimit/) - grpc rate limiting by your own limiter
 
-## Status
-
-This code has been running in *production* since May 2016 as the basis of the gRPC micro services stack at [Improbable](https://improbable.io).
-
-Additional tooling will be added, and contributions are welcome.
 
 ## License
 
diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/chain.go b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/chain.go
index ea3738b..407d933 100644
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/chain.go
+++ b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/chain.go
@@ -16,22 +16,41 @@
 // Execution is done in left-to-right order, including passing of context.
 // For example ChainUnaryServer(one, two, three) will execute one before two before three, and three
 // will see context changes of one and two.
+//
+// While this can be useful in some scenarios, it is generally advisable to use google.golang.org/grpc.ChainUnaryInterceptor directly.
 func ChainUnaryServer(interceptors ...grpc.UnaryServerInterceptor) grpc.UnaryServerInterceptor {
 	n := len(interceptors)
 
+	// Dummy interceptor maintained for backward compatibility to avoid returning nil.
+	if n == 0 {
+		return func(ctx context.Context, req interface{}, _ *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
+			return handler(ctx, req)
+		}
+	}
+
+	// The degenerate case, just return the single wrapped interceptor directly.
+	if n == 1 {
+		return interceptors[0]
+	}
+
+	// Return a function which satisfies the interceptor interface, and which is
+	// a closure over the given list of interceptors to be chained.
 	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
-		chainer := func(currentInter grpc.UnaryServerInterceptor, currentHandler grpc.UnaryHandler) grpc.UnaryHandler {
-			return func(currentCtx context.Context, currentReq interface{}) (interface{}, error) {
-				return currentInter(currentCtx, currentReq, info, currentHandler)
+		currHandler := handler
+		// Iterate backwards through all interceptors except the first (outermost).
+		// Wrap each one in a function which satisfies the handler interface, but
+		// is also a closure over the `info` and `handler` parameters. Then pass
+		// each pseudo-handler to the next outer interceptor as the handler to be called.
+		for i := n - 1; i > 0; i-- {
+			// Rebind to loop-local vars so they can be closed over.
+			innerHandler, i := currHandler, i
+			currHandler = func(currentCtx context.Context, currentReq interface{}) (interface{}, error) {
+				return interceptors[i](currentCtx, currentReq, info, innerHandler)
 			}
 		}
-
-		chainedHandler := handler
-		for i := n - 1; i >= 0; i-- {
-			chainedHandler = chainer(interceptors[i], chainedHandler)
-		}
-
-		return chainedHandler(ctx, req)
+		// Finally return the result of calling the outermost interceptor with the
+		// outermost pseudo-handler created above as its handler.
+		return interceptors[0](ctx, req, info, currHandler)
 	}
 }
 
@@ -40,22 +59,31 @@
 // Execution is done in left-to-right order, including passing of context.
 // For example ChainUnaryServer(one, two, three) will execute one before two before three.
 // If you want to pass context between interceptors, use WrapServerStream.
+//
+// While this can be useful in some scenarios, it is generally advisable to use google.golang.org/grpc.ChainStreamInterceptor directly.
 func ChainStreamServer(interceptors ...grpc.StreamServerInterceptor) grpc.StreamServerInterceptor {
 	n := len(interceptors)
 
-	return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
-		chainer := func(currentInter grpc.StreamServerInterceptor, currentHandler grpc.StreamHandler) grpc.StreamHandler {
-			return func(currentSrv interface{}, currentStream grpc.ServerStream) error {
-				return currentInter(currentSrv, currentStream, info, currentHandler)
+	// Dummy interceptor maintained for backward compatibility to avoid returning nil.
+	if n == 0 {
+		return func(srv interface{}, stream grpc.ServerStream, _ *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+			return handler(srv, stream)
+		}
+	}
+
+	if n == 1 {
+		return interceptors[0]
+	}
+
+	return func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
+		currHandler := handler
+		for i := n - 1; i > 0; i-- {
+			innerHandler, i := currHandler, i
+			currHandler = func(currentSrv interface{}, currentStream grpc.ServerStream) error {
+				return interceptors[i](currentSrv, currentStream, info, innerHandler)
 			}
 		}
-
-		chainedHandler := handler
-		for i := n - 1; i >= 0; i-- {
-			chainedHandler = chainer(interceptors[i], chainedHandler)
-		}
-
-		return chainedHandler(srv, ss)
+		return interceptors[0](srv, stream, info, currHandler)
 	}
 }
 
@@ -66,19 +94,26 @@
 func ChainUnaryClient(interceptors ...grpc.UnaryClientInterceptor) grpc.UnaryClientInterceptor {
 	n := len(interceptors)
 
+	// Dummy interceptor maintained for backward compatibility to avoid returning nil.
+	if n == 0 {
+		return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
+			return invoker(ctx, method, req, reply, cc, opts...)
+		}
+	}
+
+	if n == 1 {
+		return interceptors[0]
+	}
+
 	return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
-		chainer := func(currentInter grpc.UnaryClientInterceptor, currentInvoker grpc.UnaryInvoker) grpc.UnaryInvoker {
-			return func(currentCtx context.Context, currentMethod string, currentReq, currentRepl interface{}, currentConn *grpc.ClientConn, currentOpts ...grpc.CallOption) error {
-				return currentInter(currentCtx, currentMethod, currentReq, currentRepl, currentConn, currentInvoker, currentOpts...)
+		currInvoker := invoker
+		for i := n - 1; i > 0; i-- {
+			innerInvoker, i := currInvoker, i
+			currInvoker = func(currentCtx context.Context, currentMethod string, currentReq, currentRepl interface{}, currentConn *grpc.ClientConn, currentOpts ...grpc.CallOption) error {
+				return interceptors[i](currentCtx, currentMethod, currentReq, currentRepl, currentConn, innerInvoker, currentOpts...)
 			}
 		}
-
-		chainedInvoker := invoker
-		for i := n - 1; i >= 0; i-- {
-			chainedInvoker = chainer(interceptors[i], chainedInvoker)
-		}
-
-		return chainedInvoker(ctx, method, req, reply, cc, opts...)
+		return interceptors[0](ctx, method, req, reply, cc, currInvoker, opts...)
 	}
 }
 
@@ -89,19 +124,26 @@
 func ChainStreamClient(interceptors ...grpc.StreamClientInterceptor) grpc.StreamClientInterceptor {
 	n := len(interceptors)
 
+	// Dummy interceptor maintained for backward compatibility to avoid returning nil.
+	if n == 0 {
+		return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
+			return streamer(ctx, desc, cc, method, opts...)
+		}
+	}
+
+	if n == 1 {
+		return interceptors[0]
+	}
+
 	return func(ctx context.Context, desc *grpc.StreamDesc, cc *grpc.ClientConn, method string, streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream, error) {
-		chainer := func(currentInter grpc.StreamClientInterceptor, currentStreamer grpc.Streamer) grpc.Streamer {
-			return func(currentCtx context.Context, currentDesc *grpc.StreamDesc, currentConn *grpc.ClientConn, currentMethod string, currentOpts ...grpc.CallOption) (grpc.ClientStream, error) {
-				return currentInter(currentCtx, currentDesc, currentConn, currentMethod, currentStreamer, currentOpts...)
+		currStreamer := streamer
+		for i := n - 1; i > 0; i-- {
+			innerStreamer, i := currStreamer, i
+			currStreamer = func(currentCtx context.Context, currentDesc *grpc.StreamDesc, currentConn *grpc.ClientConn, currentMethod string, currentOpts ...grpc.CallOption) (grpc.ClientStream, error) {
+				return interceptors[i](currentCtx, currentDesc, currentConn, currentMethod, innerStreamer, currentOpts...)
 			}
 		}
-
-		chainedStreamer := streamer
-		for i := n - 1; i >= 0; i-- {
-			chainedStreamer = chainer(interceptors[i], chainedStreamer)
-		}
-
-		return chainedStreamer(ctx, desc, cc, method, opts...)
+		return interceptors[0](ctx, desc, cc, method, currStreamer, opts...)
 	}
 }
 
@@ -109,12 +151,16 @@
 //
 // WithUnaryServerChain is a grpc.Server config option that accepts multiple unary interceptors.
 // Basically syntactic sugar.
+//
+// Deprecated: use google.golang.org/grpc.ChainUnaryInterceptor instead.
 func WithUnaryServerChain(interceptors ...grpc.UnaryServerInterceptor) grpc.ServerOption {
-	return grpc.UnaryInterceptor(ChainUnaryServer(interceptors...))
+	return grpc.ChainUnaryInterceptor(interceptors...)
 }
 
 // WithStreamServerChain is a grpc.Server config option that accepts multiple stream interceptors.
 // Basically syntactic sugar.
+//
+// Deprecated: use google.golang.org/grpc.ChainStreamInterceptor instead.
 func WithStreamServerChain(interceptors ...grpc.StreamServerInterceptor) grpc.ServerOption {
-	return grpc.StreamInterceptor(ChainStreamServer(interceptors...))
+	return grpc.ChainStreamInterceptor(interceptors...)
 }
diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/doc.go b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/doc.go
index afd924a..f8ba719 100644
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/doc.go
+++ b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/doc.go
@@ -18,7 +18,7 @@
 linear backoff with 10% jitter.
 
 For chained interceptors, the retry interceptor will call every interceptor that follows it
-whenever when a retry happens.
+whenever a retry happens.
 
 Please see examples for more advanced use.
 */
diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/retry.go b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/retry.go
index 62d8312..003bbd9 100644
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/retry.go
+++ b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/retry/retry.go
@@ -5,8 +5,8 @@
 
 import (
 	"context"
-	"fmt"
 	"io"
+	"strconv"
 	"sync"
 	"time"
 
@@ -136,7 +136,6 @@
 type serverStreamingRetryingStream struct {
 	grpc.ClientStream
 	bufferedSends []interface{} // single message that the client can sen
-	receivedGood  bool          // indicates whether any prior receives were successful
 	wasClosedSend bool          // indicates that CloseSend was closed
 	parentCtx     context.Context
 	callOpts      *options
@@ -209,17 +208,8 @@
 }
 
 func (s *serverStreamingRetryingStream) receiveMsgAndIndicateRetry(m interface{}) (bool, error) {
-	s.mu.RLock()
-	wasGood := s.receivedGood
-	s.mu.RUnlock()
 	err := s.getStream().RecvMsg(m)
 	if err == nil || err == io.EOF {
-		s.mu.Lock()
-		s.receivedGood = true
-		s.mu.Unlock()
-		return false, err
-	} else if wasGood {
-		// previous RecvMsg in the stream succeeded, no retry logic should interfere
 		return false, err
 	}
 	if isContextError(err) {
@@ -303,7 +293,7 @@
 		ctx, _ = context.WithTimeout(ctx, callOpts.perCallTimeout)
 	}
 	if attempt > 0 && callOpts.includeHeader {
-		mdClone := metautils.ExtractOutgoing(ctx).Clone().Set(AttemptMetadataKey, fmt.Sprintf("%d", attempt))
+		mdClone := metautils.ExtractOutgoing(ctx).Clone().Set(AttemptMetadataKey, strconv.FormatUint(uint64(attempt), 10))
 		ctx = mdClone.ToOutgoing(ctx)
 	}
 	return ctx
diff --git a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/util/metautils/nicemd.go b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/util/metautils/nicemd.go
index 1c60585..15225d7 100644
--- a/vendor/github.com/grpc-ecosystem/go-grpc-middleware/util/metautils/nicemd.go
+++ b/vendor/github.com/grpc-ecosystem/go-grpc-middleware/util/metautils/nicemd.go
@@ -10,7 +10,7 @@
 	"google.golang.org/grpc/metadata"
 )
 
-// NiceMD is a convenience wrapper definiting extra functions on the metadata.
+// NiceMD is a convenience wrapper defining extra functions on the metadata.
 type NiceMD metadata.MD
 
 // ExtractIncoming extracts an inbound metadata from the server-side context.
@@ -39,7 +39,7 @@
 
 // Clone performs a *deep* copy of the metadata.MD.
 //
-// You can specify the lower-case copiedKeys to only copy certain whitelisted keys. If no keys are explicitly whitelisted
+// You can specify the lower-case copiedKeys to only copy certain allow-listed keys. If no keys are explicitly allow-listed
 // all keys get copied.
 func (m NiceMD) Clone(copiedKeys ...string) NiceMD {
 	newMd := NiceMD(metadata.Pairs())
@@ -61,7 +61,7 @@
 		newMd[k] = make([]string, len(vv))
 		copy(newMd[k], vv)
 	}
-	return NiceMD(newMd)
+	return newMd
 }
 
 // ToOutgoing sets the given NiceMD as a client-side context for dispatching.