chore(deps): update postgres-cluster docker tag to v7.8.0 (#4278)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [postgres-cluster](https://github.com/cloudnative-pg/cloudnative-pg) | minor | `7.7.0` → `7.8.0` |

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Reviewed-on: #4278
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/gitea/Chart.lock

@@ -13,15 +13,15 @@ dependencies:
   version: 2.3.0
 - name: postgres-cluster
   repository: oci://harbor.alexlebens.net/helm-charts
-  version: 7.6.0
-- name: redis-replication
-  repository: oci://harbor.alexlebens.net/helm-charts
-  version: 1.0.4
+  version: 7.8.0
 - name: redis-replication
   repository: oci://harbor.alexlebens.net/helm-charts
   version: 1.0.4
+- name: valkey
+  repository: https://valkey.io/valkey-helm
+  version: 0.9.3
 - name: volsync-target
   repository: oci://harbor.alexlebens.net/helm-charts
   version: 0.7.0
-digest: sha256:ea21ed8ec7d03a5a49345eef3636c4cb6a647211e4952e9291047f92b9ed035e
-generated: "2026-02-13T19:38:46.206905532Z"
+digest: sha256:3f07d3dfabfb6af4380d684ff260648715f5a3aec72f29434504d4b2b393d104
+generated: "2026-02-27T18:15:51.548269718Z"

clusters/cl01tl/helm/gitea/Chart.yaml

@@ -39,7 +39,7 @@ dependencies:
     version: 2.3.0
   - name: postgres-cluster
     alias: postgres-18-cluster
-    version: 7.7.0
+    version: 7.8.0
     repository: oci://harbor.alexlebens.net/helm-charts
   - name: redis-replication
     alias: redis-replication-gitea