Add selector usage cop for QA and non-QA tests

.rubocop.yml

ee/spec/features/admin/admin_audit_logs_spec.rb

ee/spec/features/epics/delete_epic_spec.rb

ee/spec/features/groups/billing/seat_usage_spec.rb

ee/spec/features/groups/navbar_spec.rb

ee/spec/features/projects/custom_projects_template_spec.rb

ee/spec/features/projects/mirror_spec.rb

ee/spec/features/projects/new_project_spec.rb

ee/spec/features/projects_spec.rb

ee/spec/features/protected_branches_spec.rb

...ures/protected_branches_access_control_shared_examples.rb

ee/spec/views/groups/settings/_transfer.html.haml_spec.rb

rubocop/cop/qa/selector_usage.rb

spec/features/admin/admin_appearance_spec.rb

spec/features/admin/admin_groups_spec.rb

spec/features/admin/users/user_spec.rb

...ues/create_issue_for_discussions_in_merge_request_spec.rb

...eate_issue_for_single_discussion_in_merge_request_spec.rb

spec/features/issues/issue_sidebar_spec.rb

spec/features/issues/user_creates_issue_spec.rb