fix nc security context

nextcloud/manifests/app.yml

@@ -171,6 +171,9 @@ spec:
         image: libresh/nextcloud:${NC_IMAGE_TAG}
         imagePullPolicy: Always
         name: app
+        securityContext:
+          runAsUser: 82
+          runAsGroup: 82
         livenessProbe:
           httpGet:
             path: /heartbeat