We want to make sure that our messages and errors match with the conformance suite. (protovalidate-go opts in [here](https://github.com/bufbuild/protovalidate-go/blob/1f18b8646a47b77499c6851402a0e5e3a1a376d1/Makefile#L14).) Mentioned this here: https://github.com/bufbuild/protovalidate-python/pull/252#issuecomment-2666020710