build(deps): bump google.golang.org/grpc from 1.37.1 to 1.38.0 (#9367)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.37.1 to 1.38.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.37.1...v1.38.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -52,7 +52,7 @@ require (
 	golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
 	golang.org/x/sys v0.0.0-20210510120138-977fb7262007 // indirect
 	google.golang.org/genproto v0.0.0-20210114201628-6edceaf6022f
-	google.golang.org/grpc v1.37.1
+	google.golang.org/grpc v1.38.0
 	google.golang.org/protobuf v1.26.0
 	gopkg.in/ini.v1 v1.61.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0