chore(deps): update postgres-cluster docker tag to v7.10.0 (#4758)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [postgres-cluster](https://github.com/cloudnative-pg/cloudnative-pg) | minor | `7.9.1` → `7.10.0` |

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Reviewed-on: #4758
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/stalwart/Chart.lock

@@ -4,12 +4,12 @@ dependencies:
   version: 4.6.2
 - name: postgres-cluster
   repository: oci://harbor.alexlebens.net/helm-charts
-  version: 7.9.1
+  version: 7.10.0
 - name: valkey
   repository: oci://harbor.alexlebens.net/helm-charts
   version: 0.4.0
 - name: volsync-target
   repository: oci://harbor.alexlebens.net/helm-charts
   version: 0.8.0
-digest: sha256:aef9a2c62df9bf44adf02d84b032ccd198c34cee56ff8d86d7200e9f5b21a5c1
-generated: "2026-03-11T23:03:39.658857007Z"
+digest: sha256:6ffe4bd6af377f2ba5134389027e86085928d5e1108bb5ecf0d4b1e4cc908b67
+generated: "2026-03-15T20:10:31.966910173Z"