rebase: bump google.golang.org/grpc from 1.51.0 to 1.52.0

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.51.0 to 1.52.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.51.0...v1.52.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

vendor/google.golang.org/grpc/stream.go

@@ -416,7 +416,7 @@ func (cs *clientStream) newAttemptLocked(isTransparent bool) (*csAttempt, error)
 		ctx = trace.NewContext(ctx, trInfo.tr)
 	}
 
-	if cs.cc.parsedTarget.Scheme == "xds" {
+	if cs.cc.parsedTarget.URL.Scheme == "xds" {
 		// Add extra metadata (metadata that will be added by transport) to context
 		// so the balancer can see them.
 		ctx = grpcutil.WithExtraMetadata(ctx, metadata.Pairs(