Upgrade Postgres (v17.6-5 -> v17.6-6)

requirements.yml

@@ -43,7 +43,7 @@
   version: ff2fd42e1c1a9e28e3312bbd725395f9c2fc7f16
   name: playbook_state_preserver
 - src: git+https://github.com/mother-of-all-self-hosting/ansible-role-postgres.git
-  version: v17.6-5
+  version: v17.6-6
   name: postgres
 - src: git+https://github.com/mother-of-all-self-hosting/ansible-role-postgres-backup.git
   version: v17-8