Check registry patroni setup in gprd

After standing up the registry Patroni cluster in production we should check if it is ready to be used by the container registry:

• db console access for devs
• gkms vault being setup with correct db credentials
• db password working to connect to the DB
• primary pgbouncer LB hostname: pgbouncer-registry.int.gprd.gitlab.net
• consul DNS entries are resolved on pgbouncer and patroni nodes: replica.patroni-registry.service.consul and master.patroni-registry.service.consul
• wal archiving on the primary
• db backups
• dr replicas
• db backup restore tests
• DB tuning (connection pool size)
• DB grants, tables, privileges