refactor: remove all mentions on cancels_at

Author: mckenziearts

src/Models/Subscription.php

@@ -32,7 +32,6 @@
  * @property-read ?CarbonInterface $trial_ends_at
  * @property-read ?CarbonInterface $starts_at
  * @property-read ?CarbonInterface $ends_at
- * @property-read ?CarbonInterface $cancels_at
  * @property-read ?CarbonInterface $canceled_at
  * @property-read CarbonInterface $created_at
  * @property-read CarbonInterface $updated_at
@@ -68,7 +67,6 @@ class Subscription extends Model
         'trial_ends_at' => 'datetime',
         'starts_at' => 'datetime',
         'ends_at' => 'datetime',
-        'cancels_at' => 'datetime',
         'canceled_at' => 'datetime',
         'deleted_at' => 'datetime',
     ];