Bump google.golang.org/grpc from 1.55.0 to 1.56.1 (#400)

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.55.0 to 1.56.1.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](grpc/grpc-go@v1.55.0...v1.56.1)

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

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

go.mod

@@ -5,6 +5,6 @@ go 1.15
 require (
 	github.com/golang/protobuf v1.5.3
 	github.com/jhump/protoreflect v1.14.1
-	google.golang.org/grpc v1.55.0
+	google.golang.org/grpc v1.56.1
 	google.golang.org/protobuf v1.30.0
 )