fix: Update test comment in index.ts (#707)

Adds a small change to test workflow update.

Author: willum070

samples/test-example/index.ts

@@ -3,7 +3,7 @@
  * Copyright 2025 Google LLC. All Rights Reserved.
  * SPDX-License-Identifier: Apache-2.0
  */
-// TEST COMMENT 006
+// TEST COMMENT 007
 // [START maps_test_example]
 // Initialize and add the map.
 let map;