Fix child pipeline button click

app/assets/javascripts/pipelines/components/graph/linked_pipeline.vue

@@ -150,7 +150,7 @@ export default {
         :class="`js-pipeline-expand-${pipeline.id} ${expandButtonPosition}`"
         :icon="expandedIcon"
         data-testid="expandPipelineButton"
-        data-qa-selector="linked_pipeline_button"
+        data-qa-selector="expand_pipeline_button"
         @click="onClickLinkedPipeline"
       />
     </div>

qa/qa/page/project/pipeline/show.rb

@@ -21,7 +21,7 @@ module QA
           end
 
           view 'app/assets/javascripts/pipelines/components/graph/linked_pipeline.vue' do
-            element :linked_pipeline_button
+            element :expand_pipeline_button
             element :child_pipeline
           end
 
@@ -69,8 +69,10 @@ module QA
             click_element(:job_link, text: job_name)
           end
 
-          def click_linked_job(project_name)
-            click_element(:linked_pipeline_button, text: /#{project_name}/)
+          def expand_child_pipeline
+            within_element(:child_pipeline) do
+              click_element(:expand_pipeline_button)
+            end
           end
 
           def click_on_first_job

qa/qa/specs/features/ee/browser_ui/6_release/multi-project_pipelines_spec.rb

@@ -75,7 +75,7 @@ module QA
         runner.remove_via_api!
       end
 
-      it 'creates a multi-project pipeline', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/560', quarantine: { issue: 'https://gitlab.com/gitlab-org/gitlab/-/issues/243797', type: :investigating } do
+      it 'creates a multi-project pipeline', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/560' do
         Page::MergeRequest::Show.perform do |show|
           pipeline_passed = show.retry_until(reload: true, max_attempts: 20, sleep_interval: 6) do
             show.has_content?(/Pipeline #\d+ passed/)
@@ -90,7 +90,7 @@ module QA
           expect(show).to have_passed
           expect(show).to have_no_job("downstream_job")
 
-          show.click_linked_job(downstream_project_name)
+          show.expand_child_pipeline
 
           expect(show).to have_job("downstream_job")
         end