Update Helm release postgres-cluster to v6.17.1 (#2500)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [postgres-cluster](https://github.com/cloudnative-pg/charts) ([source](https://github.com/cloudnative-pg/charts/tree/HEAD/charts/cluster)) | minor | `6.16.1` -> `6.17.1` |

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### Configuration

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🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

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 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

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This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi4zOS4xIiwidXBkYXRlZEluVmVyIjoiNDIuMzkuMSIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiY2hhcnQiXX0=-->

Reviewed-on: #2500
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/harbor/Chart.lock

@@ -4,6 +4,6 @@ dependencies:
   version: 1.18.1
 - name: postgres-cluster
   repository: https://gitea.alexlebens.net/api/packages/alexlebens/helm
-  version: 6.16.1
-digest: sha256:a8f5d259fb93f933050c498d9271a5b8606594c968a360f8be151f47b3feb49d
-generated: "2025-12-11T20:49:18.650522-06:00"
+  version: 6.17.1
+digest: sha256:d0a396853836f69f136a28339d152146434712dafa43e2d4359af712d40d6dbf
+generated: "2025-12-14T21:13:53.814861593Z"

clusters/cl01tl/helm/harbor/Chart.yaml

@@ -21,7 +21,7 @@ dependencies:
     repository: https://helm.goharbor.io
   - name: postgres-cluster
     alias: postgres-18-cluster
-    version: 6.16.1
+    version: 6.17.1
     repository: https://gitea.alexlebens.net/api/packages/alexlebens/helm
 icon: https://cdn.jsdelivr.net/gh/selfhst/icons/png/harbor.png
 appVersion: v2.14.1