chore(deps): bump github.com/golang/protobuf in /tests/apps/gogrpc

Bumps [github.com/golang/protobuf](https://github.com/golang/protobuf) from 1.5.2 to 1.5.3.
- [Release notes](https://github.com/golang/protobuf/releases)
- [Commits](https://github.com/golang/protobuf/compare/v1.5.2...v1.5.3)

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

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

tests/apps/gogrpc/go.mod

@@ -3,7 +3,7 @@ module github.com/dokku/dokko/tests/apps/gorpc
 go 1.19
 
 require (
-	github.com/golang/protobuf v1.5.2
+	github.com/golang/protobuf v1.5.3
 	golang.org/x/net v0.8.0
 	golang.org/x/sys v0.6.0 // indirect
 	golang.org/x/text v0.8.0 // indirect