Bump dependencies in Go services

[pellared]

Background

I noticed that the pb.go files where not regenerated for a long time and thus the generated code was using deprecated Go module (github.com/golang/protobuf)

I think that without regenerating it might not even work with google.golang.org/grpc v1.66.0. At least this is what I noticed when working on signalfx#152.

Fixes

N/A

Change Summary

• Bump Go version in go.mod files to 1.23 (the Dockerfile are already using Go 1.23.
• Update the genproto.sh so that it works fine with latest protoc tooling. References:
  • https://grpc.io/docs/languages/go/quickstart/
  • https://protobuf.dev/reference/go/go-generated/

Additional Notes

• nit: I also replaced as to AS in Dockerfiles to get rid of docker build warning

Testing Procedure

Related PRs or Issues

[pellared]

header-check failed for generated files. I am not sure if I should do anything with it. Feel free to edit if necessary.

[pellared]

Should I revert the Go version to 1.22 or update to Go 1.23 in places that I have missed?

[bourgeoisor]

LGTM

[mike-ensor]

LGTM (posthumously, should have refreshed before review)