protoc-gen-go 1.28.1-3 (s390x binary) in ubuntu lunar

 This protobuf compiler plugin is from google.golang.org/protobuf module,
 which is recommended by upstream.
 .
 Compared to the old plugin provided by github.com/golang/protobuf module, in
 protoc-gen-go-1-3 or protoc-gen-go-1-5 package, it doesn't support generating
 gRPC service definitions.
 .
 For APIv2, see https://go.dev/blog/protobuf-apiv2.