Merge branch 'ml-rename-status-issue-tag-to-testcase' into 'master'

Rename `status_issue` tag to `testcase`

See merge request gitlab-org/gitlab!40677

qa/qa/support/json_formatter.rb

@@ -48,7 +48,7 @@ module QA
           line_number: line_number.to_i,
           run_time: example.execution_result.run_time,
           pending_message: example.execution_result.pending_message,
-          status_issue: example.metadata[:status_issue],
+          testcase: example.metadata[:testcase],
           quarantine: example.metadata[:quarantine],
           screenshot: example.metadata[:screenshot]
         }