Add latest changes from gitlab-org/gitlab@master

app/events/work_items/work_item_deleted_event.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module WorkItems
+  class WorkItemDeletedEvent < Gitlab::EventStore::Event
+    def schema
+      {
+        'type' => 'object',
+        'required' => %w[id namespace_id],
+        'properties' => {
+          'id' => { 'type' => 'integer' },
+          'namespace_id' => { 'type' => 'integer' },
+          'work_item_parent_id' => { 'type' => 'integer' }
+        }
+      }
+    end
+  end
+end