Up zio grpc codegen version

[GMadorell]

No description provided.

[joroKr21]

Won't this force us to update to ZIO 2?

[zhrebicek]

It would.

[temo-cx]

@zhrebicek, I also had to update the grpc-codegen version to 6.x, as one of our services utilizes ZIO 2.x, and I needed to include sbt-protobdep. However, it turns out that grpc-codegen 6.1 is incompatible with ZIO 2.x due to a conflicting transitive netty dependency (ZIO 2.x includes an older version of netty, whereas 6.1 introduces a newer one, leading to runtime failures). Consequently, I had to slightly downgrade to grpc-codegen 6.0 and create a separate PR. Have you tried using grpc-codegen 6.1 with ZIO 2.x?

[zhrebicek]

Feel free to merge it, but at least document that it is breaking change -> required upgrade to ZIO 2.
This thing is also slowly on the way not fixating on any version coralogix/sbt-protofetch#1

[GMadorell]

This thing is also slowly on the way not fixating on any version

Yeah, we might wait until we really need it, then.