Merge branch 'qa-refactor-epic-milestone-e2e' into 'master'

Refactor epic milestone e2e to reduce flakiness

See merge request gitlab-org/gitlab!74647

qa/qa/ee/resource/epic.rb

@@ -15,7 +15,11 @@ module QA
                    :due_date_is_fixed,
                    :due_date_fixed,
                    :confidential,
-                   :author
+                   :author,
+                   :start_date,
+                   :due_date,
+                   :start_date_from_milestones,
+                   :due_date_from_milestones
 
         attribute :group do
           QA::Resource::Group.fabricate!

qa/qa/resource/project_milestone.rb

@@ -20,6 +20,10 @@ module QA
         @description = "My awesome project milestone."
       end
 
+      def api_delete_path
+        "/projects/#{project.id}/milestones/#{id}"
+      end
+
       def api_get_path
         "/projects/#{project.id}/milestones/#{id}"
       end