Using protected $dates attribute is depreciated

[MatthewMusicplayOnline]

• Cashier Version: newest
• Laravel Version: 9.25.1
• PHP Version: PHP 8.1.7

Subscription model uses protected $dates = [] attribute to convert date strings to Carbon objects for 'created_at', 'ends_at', 'trial_ends_at', 'updated_at'.

This dates array was deprecated in Laravel 5.0
https://laravel.com/api/9.x/Illuminate/Database/Eloquent/Model.html

It's been replaced with casts, ex.
protected $casts = [
'trial_ends_at' => 'datetime'
];

[driesvints]

Thanks. I sent in a PR to remove this: #1462