UnifyModelDatesWithCastsRector

Unify Model $dates property with $casts

 use Illuminate\Database\Eloquent\Model;

 class Person extends Model
 {
     protected $casts = [
-        'age' => 'integer',
+        'age' => 'integer', 'birthday' => 'datetime',
     ];
-
-    protected $dates = ['birthday'];
 }

Configure your rector.php:

<?php

use RectorLaravel\Rector\Class_\UnifyModelDatesWithCastsRector;
use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withRules([
        UnifyModelDatesWithCastsRector::class,
    ]);