Remove quarantine from transiently failing push_rules_spec test

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

@@ -55,7 +55,7 @@ module QA
             error: Regexp.escape("File name #{@file_name_limitation} was blacklisted by the pattern #{@file_name_limitation}"))
         end
 
-        it 'restricts users by email format', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/652', quarantine: { issue: 'https://gitlab.com/gitlab-org/gitlab/-/issues/247131', type: :investigating } do
+        it 'restricts users by email format', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/652' do
           gitlab_user = Resource::User.fabricate_or_use(Runtime::Env.gitlab_qa_username_2, Runtime::Env.gitlab_qa_password_2)
           @project.add_member(gitlab_user, Resource::Members::AccessLevel::MAINTAINER)