Merge branch 'use-only-ref-in-the-code-quality-job-template' into 'master'

Update Code-Quality.gitlab-ci.yml to use `only.refs`

See merge request gitlab-org/gitlab-ce!32394

lib/gitlab/ci/templates/Jobs/Code-Quality.gitlab-ci.yml

@@ -25,8 +25,9 @@ code_quality:
     expire_in: 1 week
   dependencies: []
   only:
-    - branches
-    - tags
+    refs:
+      - branches
+      - tags
   except:
     variables:
       - $CODE_QUALITY_DISABLED