SEBA-902 single-olt tests;
Pin protoc-gen-go to 1.3.2 to resolve compatibility issue;
Run go mod tidy / go mod vendor on importer;
Add Go Module support to demotest

Change-Id: Ifde824fc9a6317b0adc1e12bea54ee1f9b788906
diff --git a/vendor/gopkg.in/jcmturner/gokrb5.v7/client/TGSExchange.go b/vendor/gopkg.in/jcmturner/gokrb5.v7/client/TGSExchange.go
index 8ad3e55..93ff1db 100644
--- a/vendor/gopkg.in/jcmturner/gokrb5.v7/client/TGSExchange.go
+++ b/vendor/gopkg.in/jcmturner/gokrb5.v7/client/TGSExchange.go
@@ -60,7 +60,7 @@
 				return tgsReq, tgsRep, err
 			}
 		}
-		tgsReq, err = messages.NewTGSReq(cl.Credentials.CName(), kdcRealm, cl.Config, tgt, sessionKey, tgsReq.ReqBody.SName, tgsReq.Renewal)
+		tgsReq, err = messages.NewTGSReq(cl.Credentials.CName(), realm, cl.Config, tgsRep.Ticket, tgsRep.DecryptedEncPart.Key, tgsReq.ReqBody.SName, tgsReq.Renewal)
 		if err != nil {
 			return tgsReq, tgsRep, err
 		}