Deploy reference recording proxy in the main writable PostgreSQL storages in staging and prod

Once we're able to record object references (when #4911 (closed) is done), we should start doing so in staging and production.

With the current status of staging (and the ongoing migration to cassandra, with usage of the cross-replayers), we need to make sure that all backends that write directly to postgresql have the reference recording proxy enabled.

• staging: review storage instances that directly write to postgresql
• staging: add reference_recording proxy to storage1 (/puppet)
• staging: add reference_recording proxy to helm charts if needed (?)
• production: add reference_recording proxy to saam (/puppet)