fix: remove_cancels_at_from_subscriptions_table on service provider (#43)

Author: mckenziearts

src/SubscriptionServiceProvider.php

@@ -21,6 +21,7 @@ public function configurePackage(Package $package): void
                 'create_plan_subscription_usage_table',
                 'remove_unique_slug_on_subscriptions_table',
                 'update_unique_keys_on_features_table',
+                'remove_cancels_at_from_subscriptions_table',
             ])
             ->hasInstallCommand(function (InstallCommand $command): void {
                 $command