chore(gae): Migrate region tags from build-an-app (#4045)

* chore(gae): Migrate region tags from build-an-app

* fix(gae): Fix linting issues

Author: hivanalejandro

appengine/building-an-app/build/app.yaml

@@ -11,8 +11,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# [START gae_build_app_yaml_node]
 # [START app_yaml]
 # [START gae_app_yaml]
 runtime: nodejs20
 # [END gae_app_yaml]
 # [END app_yaml]
+# [END gae_build_app_yaml_node]

appengine/building-an-app/build/test/server.test.js

@@ -15,15 +15,14 @@ const supertest = require('supertest');
 const path = require('path');
 const app = require(path.join(__dirname, '../', 'server.js'));
 
-
 describe('gae_app', () => {
   it('should be listening', async () => {
     await supertest(app).get('/').expect(200);
   });
-})
+});
 
 describe('gae_build_web_server_app', () => {
   it('should be listening', async () => {
     await supertest(app).get('/').expect(200);
   });
-})
+});

appengine/building-an-app/update/app.yaml

@@ -11,8 +11,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# [START gae_update_app_yaml_node]
 # [START gae_app_yaml]
 # [START app_yaml]
 runtime: nodejs20
 # [END app_yaml]
 # [END gae_app_yaml]
+# [END gae_update_app_yaml_node]