Merge branch 'remove-eol-spaces-check-runner' into 'master'

Remove trailing spaces check

See merge request gitlab-org/omnibus-gitlab!4509

.markdownlint.json

@@ -7,6 +7,7 @@
   "ul-style": {
     "style": "dash"
   },
+  "no-trailing-spaces": false,
   "line-length": false,
   "no-duplicate-header": {
     "allow_different_nesting": true