Explicitly designate primary in praefect config
In the effort to deploy praefect to prod in front of gitaly without any replication, we want to gaurantee that all RPCS are written to a primary node that we can explicitly configure in the config.
In the effort to deploy praefect to prod in front of gitaly without any replication, we want to gaurantee that all RPCS are written to a primary node that we can explicitly configure in the config.