Bump google.golang.org/grpc from 1.29.1 to 1.53.0 in /server-reflection

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.29.1 to 1.53.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.29.1...v1.53.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
...

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

Author: dependabot[bot]

server-reflection/go.mod

@@ -4,6 +4,5 @@ go 1.14
 
 require (
 	github.com/gogo/protobuf v1.3.2
-	github.com/golang/protobuf v1.4.2 // indirect
-	google.golang.org/grpc v1.29.1
+	google.golang.org/grpc v1.53.0
 )