Bump google.golang.org/grpc from 1.57.2 to 1.63.2 in /http2/go-grpc

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.57.2 to 1.63.2.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.57.2...v1.63.2)

---
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>

http2/go-grpc/go.mod

@@ -3,14 +3,13 @@ module github.com/SAP-samples/cf-routing-samples/go-grpc
 go 1.17
 
 require (
-	google.golang.org/grpc v1.57.2
+	google.golang.org/grpc v1.63.2
 	google.golang.org/protobuf v1.33.0
 )
 
 require (
-	github.com/golang/protobuf v1.5.3 // indirect
 	golang.org/x/net v0.23.0 // indirect
 	golang.org/x/sys v0.18.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240227224415-6ceb2ff114de // indirect
 )