chore(deps): update helm chart postgresql to v12.6.9 (#41)

* chore(deps): update helm chart postgresql to v12.6.9
* chore: Auto-update chart metadata

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <renovate[bot]@users.noreply.github.com>

charts/apps/piped/Chart.yaml

@@ -10,7 +10,7 @@ sources:
   - https://github.com/TeamPiped/piped-proxy
 keywords:
   - streaming
-version: 3.0.2
+version: 3.0.3
 appVersion: latest
 kubeVersion: ">=1.22.0-0"
 maintainers:
@@ -23,9 +23,9 @@ dependencies:
     version: 1.5.1
   - name: postgresql
     repository: https://charts.bitnami.com/bitnami
-    version: 12.6.0
+    version: 12.6.9
     condition: postgresql.enabled
 annotations:
   artifacthub.io/changes: |-
-    - kind: fixed
-      description: backend configmap with secrets
+    - kind: changed
+      description: Upgraded `postgresql` chart dependency to version 12.6.9