Merge branch 'qa-shl-stablize-project-template-spec' into 'master'

Stablize instance level project template spec

Closes #233973

See merge request gitlab-org/gitlab!39320

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

@@ -70,6 +70,7 @@ module QA
         before do
           Flow::Login.sign_in_as_admin
 
+          Support::Retrier.retry_until do
             Page::Main::Menu.perform(&:go_to_admin_area)
             Page::Admin::Menu.perform(&:go_to_template_settings)
 
@@ -80,7 +81,8 @@ module QA
             Page::Admin::Menu.perform(&:go_to_template_settings)
 
             EE::Page::Admin::Settings::Templates.perform do |templates|
-            expect(templates.current_custom_project_template).to include @template_container_group_name
+              templates.current_custom_project_template.include? @template_container_group_name
+            end
           end
 
           Resource::Group.fabricate_via_api!.visit!