The source project of this merge request has been removed.
Update gitaly-proto to v1.3.0
This is prep work for !990 (merged)
It makes sense to get the update and stubs in immediately, rather than waiting for the RPC implementation to be finalized, so we don't end up with multiple people implementing the stubs in parallel.
I don't envision using rubyserver for my new RPC. I think it can be easily added in a future MR if we discover it is needed (perhaps when migrating existing RPCs to the CleanupService?)