Fix immich fsGroup, keila tz autoupdate, revert open-webui

- immich: add fsGroup: 1000 so init container can write to PVC
- keila: set TZ_AUTOUPDATE=disabled to prevent tz library crash
  on read-only /opt/app/lib path in v0.30.3
- open-webui: revert to v0.9.5 — v0.12.x migration crashes on
  existing DB (duplicate column name: info_json)

immich/versions/3/deployment-microservices.yaml

@@ -19,6 +19,7 @@ spec:
       securityContext:
         runAsNonRoot: true
         runAsUser: 1000
+        fsGroup: 1000
         seccompProfile:
           type: RuntimeDefault
       initContainers: