Merge branch '228597-fix-flaky-end-to-end-test' into 'master'

Make sure end-to-end test uses unique filename in metrics test

Closes #228597

See merge request gitlab-org/gitlab!36846

qa/qa/page/project/operations/metrics/show.rb

 # frozen_string_literal: true
 
+require 'securerandom'
+
 module QA
   module Page
     module Project
@@ -60,7 +62,7 @@ module QA
             def duplicate_dashboard(save_as = 'test_duplication.yml', commit_option = 'Commit to master branch')
               click_element :dashboards_filter_dropdown
               click_on 'Duplicate dashboard'
-              fill_element :duplicate_dashboard_filename_field, save_as
+              fill_element :duplicate_dashboard_filename_field, "#{SecureRandom.hex(8)}-#{save_as}"
               choose commit_option
               within('.modal-content') { click_button(class: 'btn-success') }
             end