Specify using v1 Cloud Functions (#1668)

Author: a-maurice

app_check/integration_test/functions/functions/index.js

@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-const functions = require('firebase-functions');
+const functions = require('firebase-functions/v1');
 const admin = require('firebase-admin');
-admin.initializeApp(functions.config().firebase);
+admin.initializeApp();
 
 // Adds two numbers to each other.
 exports.addNumbers = functions

messaging/integration_test/functions/functions/index.js

@@ -15,7 +15,7 @@
  */
 
 // Import the Firebase SDK for Google Cloud Functions.
-const functions = require('firebase-functions');
+const functions = require('firebase-functions/v1');
 // Import and initialize the Firebase Admin SDK.
 const admin = require('firebase-admin');
 admin.initializeApp();