gitlab-ce has some runtime issue with grpc versions, especially upb stuff.
Move all gitlab-ce dependencies to specific grpc/rubygem-grpc versions in order to keep gitlab-ce port more robust.
The changes are as follows:
- Add devel/grpc134 (copied from devel/grpc)
- Add net/rubygem-grpc130 (copied from net/rubygem-grpc)
- Move gitlab-ce and its dependencies to grpc134 and rubygem-grpc130