chore(deps): update postgres-cluster docker tag to v7.6.0 (#3958)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [postgres-cluster](https://github.com/cloudnative-pg/cloudnative-pg) | minor | `7.5.1` → `7.6.0` |

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Reviewed-on: #3958
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

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

@@ -4,9 +4,9 @@ dependencies:
   version: 4.6.2
 - name: postgres-cluster
   repository: oci://harbor.alexlebens.net/helm-charts
-  version: 7.5.1
+  version: 7.6.0
 - name: volsync-target
   repository: oci://harbor.alexlebens.net/helm-charts
   version: 0.7.0
-digest: sha256:14235b336af65f06f232805d1ddfad9fab0e61e30f602b791ab29db540a37063
-generated: "2026-02-07T02:34:12.861392906Z"
+digest: sha256:f6a9517cfb8ee35cbf2c0fba03c99a7163c3d0f48fb5a17729df7c6978110b4e
+generated: "2026-02-13T19:44:40.948564278Z"

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

@@ -26,7 +26,7 @@ dependencies:
     version: 4.6.2
   - name: postgres-cluster
     alias: postgres-18-cluster
-    version: 7.5.1
+    version: 7.6.0
     repository: oci://harbor.alexlebens.net/helm-charts
   - name: volsync-target
     alias: volsync-target-config