Merge branch 'bundler-audit-only-master' into 'master'

bundle:audit job only on master

As discussed in !3215

See merge request !3227

.gitlab-ci.yml

@@ -148,6 +148,8 @@ flay:
 
 bundler:audit:
   stage: test
+  only:
+    - master
   script:
     - "bundle exec bundle-audit update"
     - "bundle exec bundle-audit check --ignore OSVDB-115941"