Adds 3 attempts and a sleep interval of 3s to allow for widget to update

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

@@ -63,6 +63,7 @@ module QA
       it 'creates a pipeline with merged results', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/quality/test_cases/1517' do
         merge_request.visit!
 
+        Support::Retrier.retry_until(max_attempts: 3, sleep_interval: 3) do
           Page::MergeRequest::Show.perform do |show|
             expect(show).to have_pipeline_status('passed'), 'Expected the merge request pipeline to pass.'
 
@@ -73,10 +74,12 @@ module QA
             expect(show).to be_merged, "Expected content 'The changes were merged' but it did not appear."
           end
         end
+      end
 
       it 'merges via a merge train', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/quality/test_cases/1518' do
         merge_request.visit!
 
+        Support::Retrier.retry_until(max_attempts: 3, sleep_interval: 3) do
           Page::MergeRequest::Show.perform do |show|
             expect(show).to have_pipeline_status('passed'), 'Expected the merge request pipeline to pass.'
 
@@ -87,4 +90,5 @@ module QA
         end
       end
     end
+  end
 end