chore: Add package/namespace options for C#, Ruby and PHP. This is a breaking change *only* for those languages, and packages for those languages have not been published yet.
chore: Add package/namespace options for C#, Ruby and PHP. This is a breaking change *only* for those languages, and packages for those languages have not been published yet.

PiperOrigin-RevId: 374891929

googleapis/googleapis,googleapis/googleapis