Merge pull request #14 from hashicorp/oauth2-dep-version

require specific version of golang.org/x/oauth2 due to compatibility issue

go.mod

@@ -4,14 +4,17 @@ go 1.15
 
 require (
 	github.com/coreos/go-oidc v2.2.1+incompatible
+	github.com/google/go-cmp v0.5.4 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.1
 	github.com/hashicorp/go-uuid v1.0.2
 	github.com/pquerna/cachecontrol v0.0.0-20201205024021-ac21108117ac // indirect
 	github.com/stretchr/testify v1.6.1
 	github.com/yhat/scrape v0.0.0-20161128144610-24b7890b0945
 	golang.org/x/net v0.0.0-20200822124328-c89045814202
-	golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5
+	// TODO: golang.org/x/oauth2 intentionally pinned to version that doesn't
+	//       depend on google.golang.org/grpc v1.30.0 or higher due to the issue
+	//       opened at: https://github.com/etcd-io/etcd/issues/12124
+	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
 	golang.org/x/text v0.3.3
 	gopkg.in/square/go-jose.v2 v2.5.1
-
 )