Adds retry attempts to give pipeline status widget time to update

qa/qa/specs/features/ee/browser_ui/4_verify/new_discussion_not_dropping_merge_trains_mr_spec.rb

@@ -53,11 +53,13 @@ module QA
         it 'does not drop MR', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/quality/test_cases/1250' do
           start_discussion
 
+          Support::Retrier.retry_until(max_attempts: 3, sleep_interval: 3) do
             Page::MergeRequest::Show.perform do |show|
               show.has_pipeline_status?('passed')
               expect(show).to be_merged
             end
           end
+        end
 
         private