rubocop-all.yml in gitlab-styles-4.3.0 vs rubocop-all.yml in gitlab-styles-5.0.0

@@ -1,4 +1,5 @@
+---
 AllCops:
   TargetRubyVersion: 2.6
   # Cop names are not displayed in offense messages by default. Change behavior
   # by overriding DisplayCopNames, or by giving the -D/--display-cop-names
   # option.