Merge branch 'qa-shl-quarantine-repository-push-rules-spec' into 'master'

Quarantine failing push_rules_spec

See merge request gitlab-org/gitlab!21917

qa/qa/specs/features/ee/browser_ui/3_create/repository/push_rules_spec.rb

 # frozen_string_literal: true
 
 module QA
-  context 'Create' do
+  # Failure issue: https://gitlab.com/gitlab-org/gitlab/issues/34978
+  context 'Create', :quarantine do
     context 'Push Rules' do
       describe 'using non signed commits' do
         file_name_limitation = 'denied_file'