fix: edit test suite title

Author: hahnandrew

packages/auth/amplify_auth_cognito/example/integration_test/device_tracking_test.dart

@@ -259,7 +259,7 @@ void main() {
       });
 
       asyncTest(
-          'fetchCurrentDevice throws a DeviceNotTrackedException when device is forgotton.',
+          'fetchCurrentDevice throws a DeviceNotTrackedException when device is forgotten.',
           (_) async {
         expect(await getDeviceState(), DeviceState.remembered);
         await Amplify.Auth.forgetDevice();