Bump google.golang.org/protobuf from 1.28.0 to 1.28.1 (#55)

Bumps [google.golang.org/protobuf](https://github.com/protocolbuffers/protobuf-go) from 1.28.0 to 1.28.1.
- [Release notes](https://github.com/protocolbuffers/protobuf-go/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf-go/blob/master/release.bash)
- [Commits](https://github.com/protocolbuffers/protobuf-go/compare/v1.28.0...v1.28.1)

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

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

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

go.mod

@@ -6,5 +6,5 @@ require (
 	github.com/fatih/structtag v1.2.0
 	go.unistack.org/micro-proto/v3 v3.2.7
 	golang.org/x/tools v0.1.11
-	google.golang.org/protobuf v1.28.0
+	google.golang.org/protobuf v1.28.1
 )