lint:varnish update

.gitlab-ci.yml

@@ -40,9 +40,11 @@ lint:varnish:
   stage: lint
   script:
     - varnishd -C -f $CI_BUILDS_DIR/$CI_PROJECT_PATH/grafana/files/varnish-grafana.vcl
-  rules:
-    - changes:
-        - grafana/files/varnish-grafana.vcl
+  only:
+    changes:
+      - grafana/files/varnish-grafana.vcl
+    refs:
+      - merge_requests
 
 highstate:debug:
   image: docker.chaos.expert/ffffm/docker-salt-minion:latest