chore(deps): update helm release nextcloud to v9

manifests/artemis/mailu/kustomization.yaml

@@ -10,7 +10,7 @@ resources:
 helmCharts:
   - name: mailu
     repo: https://mailu.github.io/helm-charts/
-    version: 2.6.3
+    version: 2.1.2
     releaseName: mailu
     namespace: mailu
     valuesFile: values.yaml

manifests/artemis/nextcloud/kustomization.yaml

@@ -10,7 +10,7 @@ resources:
 helmCharts:
   - name: nextcloud
     repo: https://nextcloud.github.io/helm/
-    version: 8.5.2
+    version: 9.0.3
     releaseName: nextcloud
     namespace: nextcloud
     valuesFile: values.yaml