fix: Update Cloud Tasks queue name to required (#14846)

Author: bluebasil

mmv1/products/cloudtasks/Queue.yaml

@@ -67,6 +67,7 @@ properties:
   - name: 'name'
     type: String
     description: The queue name.
+    required: true
     immutable: true
     custom_flatten: 'templates/terraform/custom_flatten/name_from_self_link.tmpl'
     custom_expand: 'templates/terraform/custom_expand/qualify_queue_name.go.tmpl'