Merge branch 'refactor-test-to-avoid-flakiness' into 'master'

Refactor test to avoid flakiness

Closes #35785

See merge request gitlab-org/gitlab!19770

qa/qa/specs/features/ee/browser_ui/2_plan/related_issues/related_issues_spec.rb

@@ -32,17 +32,24 @@ module QA
         issue_1.visit!
 
         Page::Project::Issue::Show.perform do |show|
+          max_wait = 60
+          wait_interval = 1
+
           show.relate_issue(issue_2)
 
+          show.wait(reload: false, max: max_wait, interval: wait_interval) do
             expect(show).to have_content("marked this issue as related to ##{issue_2.iid}")
             expect(show.related_issuable_item).to have_content(issue_2.title)
+          end
 
           show.click_remove_related_issue_button
 
+          show.wait(reload: false, max: max_wait, interval: wait_interval) do
             expect(show).to have_content("removed the relation with ##{issue_2.iid}")
             expect(show).not_to have_content(issue_2.title)
           end
         end
       end
     end
+  end
 end