Add retrier to verify step

We've added a retrier step to the verification step to ensure elastic
search has enough time to update the index before verifying a change.

qa/qa/specs/features/ee/browser_ui/enablement/elasticsearch/elasticsearch_reindexing_spec.rb

@@ -66,11 +66,14 @@ module QA
           menu.search_for content[0..33]
         end
 
-        Page::Search::Results.perform do |search|
-          search.switch_to_code
-
-          expect(search).to have_file_in_project template[:file_name], project.name
-          expect(search).to have_file_with_content template[:file_name], content[0..33]
+        QA::Support::Retrier.retry_on_exception(max_attempts: 10, sleep_interval: 6) do
+          Page::Search::Results.perform do |search|
+            search.switch_to_code
+            aggregate_failures "testing expectations" do
+              expect(search).to have_file_in_project template[:file_name], project.name
+              expect(search).to have_file_with_content template[:file_name], content[0..33]
+            end
+          end
         end
       end
     end