fix(nextcloud): Fix label duplication

This patch removes the component label, which was previously manually
added by our deployment, but is now part of the helm chart.

apps/base/nextcloud/release.yaml

@@ -151,9 +151,6 @@ data:
         requests:
           cpu: 100m
           memory: 128Mi
-      service:
-        labels:
-          app.kubernetes.io/component: metrics
     rbac:
       enabled: true
       serviceaccount: