Exclude flaky example from review-qa-smoke job

qa/qa/specs/features/browser_ui/2_plan/issue/create_issue_spec.rb

@@ -48,7 +48,10 @@ module QA
           Resource::Issue.fabricate_via_api!.visit!
         end
 
-        it 'comments on an issue with an attachment', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1742' do
+        # The following example is excluded from running in `review-qa-smoke` job
+        # as it proved to be flaky when running against Review App
+        # See https://gitlab.com/gitlab-com/www-gitlab-com/-/issues/11568#note_621999351
+        it 'comments on an issue with an attachment', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1742', exclude: { job: 'review-qa-smoke' } do
           Page::Project::Issue::Show.perform do |show|
             show.comment('See attached image for scale', attachment: file_to_attach)