Merge branch '430133-fix-prefill-var-spec' into 'master'

Wait for first pipeline to be created

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/137295



Merged-by: Tiffany Rea <trea@gitlab.com>
Approved-by: Dan Davison <ddavison@gitlab.com>

qa/qa/specs/features/browser_ui/4_verify/ci_variable/prefill_variables_spec.rb

@@ -40,6 +40,7 @@ module QA
       before do
         Flow::Login.sign_in
         project.visit!
+        Support::Waiter.wait_until(message: 'Wait for pipeline creation') { project.pipelines.length == 1 }
 
         # Navigate to Run Pipeline page
         Page::Project::Menu.perform(&:go_to_pipelines)