feat: migrate back to prost

[jxs]

Description

In #3312, we migrated from prost to quick-protobuf primarily to eliminate the need for the protoc dependency on CI for generating Rust code from .proto files, as we were not versioning them at the time.

However, quick-protobuf has been unmaintained for years, and we should transition to a more actively maintained protobuf implementation. By versioning the generated Rust code from the .proto files, we can limit the need for protoc to only when the .proto files are modified and the Rust code needs to be regenerated.

To address this, @macladson has generously taken the time to draft a migration plan to move us back to prost.

[romac]

Note that there exists a pure Rust Protobuf compiler as a library for use with prost-build, in case you'd rather not version the generated Rust code (or just eschew the protoc dependency altogether): https://lib.rs/crates/protox

Not my crate but been using it for a while and it's worked great so far.

[jxs]

Note that there exists a pure Rust Protobuf compiler as a library for use with prost-build, in case you'd rather not version the generated Rust code (or just eschew the protoc dependency altogether): https://lib.rs/crates/protox

Not my crate but been using it for a while and it's worked great so far.

thanks! adapted gen-proto to use protox and with that we don't need to introduce protoc in the ci nor require people to have it installed and this becomes a very seamless transition

[mergify]

This pull request has merge conflicts. Could you please resolve them @jxs? 🙏

[elenaf9]

LGTM!

[mergify]

This pull request has merge conflicts. Could you please resolve them @jxs? 🙏