Quarantine MR because https://gitlab.com/gitlab-org/gitlab/issues/208761

Need to quarantine a few tests because of a bug documented in
https://gitlab.com/gitlab-org/gitlab/issues/208761

qa/qa/specs/features/browser_ui/6_release/deploy_key/add_deploy_key_spec.rb

@@ -3,7 +3,7 @@
 module QA
   context 'Release' do
     describe 'Deploy key creation' do
-      it 'user adds a deploy key' do
+      it 'user adds a deploy key', quarantine: 'https://gitlab.com/gitlab-org/gitlab/issues/208761' do
         Flow::Login.sign_in
 
         key = Runtime::Key::RSA.new

qa/qa/specs/features/browser_ui/6_release/deploy_key/clone_using_deploy_key_spec.rb

@@ -35,7 +35,7 @@ module QA
       ]
 
       keys.each do |(key_class, bits)|
-        it "user sets up a deploy key with #{key_class}(#{bits}) to clone code using pipelines" do
+        it "user sets up a deploy key with #{key_class}(#{bits}) to clone code using pipelines", quarantine: 'https://gitlab.com/gitlab-org/gitlab/issues/208761' do
           key = key_class.new(*bits)
 
           Resource::DeployKey.fabricate_via_browser_ui! do |resource|

qa/qa/specs/features/ee/browser_ui/1_manage/project/project_audit_logs_spec.rb

@@ -48,7 +48,7 @@ module QA
         it_behaves_like 'project audit event logs', ["Add user access as guest"]
       end
 
-      context "Add deploy key" do
+      context "Add deploy key", quarantine: 'https://gitlab.com/gitlab-org/gitlab/issues/208761' do
         before do
           key = Runtime::Key::RSA.new
           deploy_key_title = 'deploy key title'

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

@@ -24,7 +24,7 @@ module QA
         target_project.visit!
       end
 
-      it 'configures and syncs a (pull) mirrored repository' do
+      it 'configures and syncs a (pull) mirrored repository', quarantine: 'https://gitlab.com/gitlab-org/gitlab/issues/208761' do
         # Configure the target project to pull from the source project
         # And get the public key to be used as a deploy key
         Page::Project::Menu.perform(&:go_to_repository_settings)