chore: update .github/workflows/stale.yml

Author: cloud-foundation-bot

.github/workflows/stale.yml

@@ -1,4 +1,4 @@
-# Copyright 2022-2024 Google LLC
+# Copyright 2022-2025 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # NOTE: This file is automatically generated from:
-# https://github.com/GoogleCloudPlatform/cloud-foundation-toolkit/blob/master/infra/terraform/test-org/github
+# https://github.com/GoogleCloudPlatform/cloud-foundation-toolkit/blob/main/infra/terraform/test-org/github
 
 name: "Close stale issues"
 on: