Update postgres-cluster Docker tag to v6.16.1 (#2237)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [postgres-cluster](https://github.com/cloudnative-pg/cloudnative-pg) | patch | `6.16.0` -> `6.16.1` |

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Reviewed-on: #2237
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/radarr-anime/Chart.lock

@@ -4,6 +4,6 @@ dependencies:
   version: 4.4.0
 - name: postgres-cluster
   repository: oci://harbor.alexlebens.net/helm-charts
-  version: 6.16.0
-digest: sha256:f21d624fcafe0fc8e4f8d1c140f1fbefc40a74bdc29d6267a4d71e95ac81b95a
-generated: "2025-11-30T21:07:38.187061-06:00"
+  version: 6.16.1
+digest: sha256:34a598cda9f762b3f4ae7f7138f5183a4942fca9fafe2611162a9e3f2e293635
+generated: "2025-12-04T00:04:31.751157172Z"

clusters/cl01tl/helm/radarr-anime/Chart.yaml

@@ -27,7 +27,7 @@ dependencies:
     version: 4.4.0
   - name: postgres-cluster
     alias: postgres-17-cluster
-    version: 6.16.0
+    version: 6.16.1
     repository: oci://harbor.alexlebens.net/helm-charts
 icon: https://cdn.jsdelivr.net/gh/selfhst/icons/png/radarr-anime.png
 appVersion: 5.22.4