Advanced app `User` model code style fixes

apps/advanced/common/models/User.php

@@ -3,6 +3,7 @@ namespace common\models;
 
 use Yii;
 use yii\base\NotSupportedException;
+use yii\behaviors\TimestampBehavior;
 use yii\db\ActiveRecord;
 use yii\web\IdentityInterface;
 
@@ -41,13 +42,7 @@ class User extends ActiveRecord implements IdentityInterface
     public function behaviors()
     {
         return [
-            'timestamp' => [
-                'class' => 'yii\behaviors\TimestampBehavior',
-                'attributes' => [
-                    ActiveRecord::EVENT_BEFORE_INSERT => ['created_at', 'updated_at'],
-                    ActiveRecord::EVENT_BEFORE_UPDATE => ['updated_at'],
-                ],
-            ],
+            TimestampBehavior::className(),
         ];
     }