Danger: Trigger `tooling` category for gems related CI changes

spec/tooling/danger/project_helper_spec.rb

@@ -80,6 +80,7 @@
       '.rubocop.yml'               | [:backend]
       '.rubocop_todo.yml'          | [:backend]
       '.rubocop_todo/cop/name.yml' | [:backend]
+      'gems/foo/.rubocop.yml'      | [:backend]
       'spec/foo'                   | [:backend]
       'spec/foo/bar'               | [:backend]
 
@@ -136,6 +137,8 @@
       'tooling/bin/find_foss_tests'                           | [:tooling]
       '.codeclimate.yml'                                      | [:tooling]
       '.gitlab/CODEOWNERS'                                    | [:tooling]
+      'gems/gem.gitlab-ci.yml'                                | [:tooling]
+      'gems/config/rubocop.yml'                               | [:tooling]
 
       'lib/gitlab/ci/templates/Security/SAST.gitlab-ci.yml'   | [:ci_template]
       'lib/gitlab/ci/templates/dotNET-Core.yml'               | [:ci_template]

tooling/danger/project_helper.rb

@@ -112,6 +112,8 @@ module ProjectHelper
         %r{\A\.editorconfig\z} => :tooling,
         %r{Dangerfile\z} => :tooling,
         %r{\A((ee|jh)/)?(danger/|tooling/danger/)} => :tooling,
+        %r{\Agems/gem\.gitlab-ci\.yml\z} => :tooling,
+        %r{\Agems/config/} => :tooling,
 
         %r{\A((ee|jh)/)?scripts/(lib/)?glfm/.*\.rb} => [:backend],
         %r{\A((ee|jh)/)?scripts/(lib/)?glfm/.*\.js} => [:frontend],
@@ -161,6 +163,7 @@ module ProjectHelper
         %r{\A(Gemfile.*|Rakefile)\z} => :backend,
         %r{\A[A-Z_]+_VERSION\z} => :backend,
         %r{\A\.rubocop(_todo)?\.yml\z} => :backend,
+        %r{\Agems/.*/\.rubocop\.yml\z} => :backend,
         %r{\A\.rubocop_todo/.*\.yml\z} => :backend,
         %r{\Afile_hooks/} => :backend,