Merge branch 'fix/detailed-metrics-spec-fail' into 'master'

Fix failing detailed metrics spec

Closes #38315

See merge request gitlab-org/gitlab!21378

qa/qa/page/layout/performance_bar.rb

@@ -22,7 +22,7 @@ module QA
         def has_detailed_metrics?
           all_elements(:performance_bar_detailed_metric).all? do |metric|
-            metric.has_text?(%r{\d+ms / \d+})
+            metric.has_text?(%r{\d+})
           end
         end