Quarantine flaky test

The test fails intermittently in master
See https://gitlab.com/gitlab-org/gitlab/-/issues/213222

qa/qa/specs/features/browser_ui/6_release/deploy_token/add_deploy_token_spec.rb

 # frozen_string_literal: true
 
 module QA
-  context 'Release' do
+  context 'Release', quarantine: { issue: 'https://gitlab.com/gitlab-org/gitlab/-/issues/213222', type: :flaky } do
     describe 'Deploy token creation' do
       it 'user adds a deploy token' do
         Flow::Login.sign_in