feat(purchase): refactor stock reservation expiration handling and update related tests

app/Domains/Purchase/Controllers/PurchaseController.php

@@ -140,12 +140,6 @@ class PurchaseController extends Controller
                 $purchaseUpdate['transfer_payer_dni'] = $transferPayerDni;
             }
             $purchase->update($purchaseUpdate);
-            $checkoutService->refreshReservationExpiration(
-                $purchase,
-                now()->addMinutes(
-                    max(1, (int) config("purchase.payment_expiration_minutes.{$method}", 30)),
-                ),
-            );
 
             return true;
         });

app/Domains/Purchase/Services/CheckoutService.php

@@ -8,7 +8,6 @@ use App\Domains\Purchase\Services\Checkout\EditCheckoutService;
 use App\Domains\Purchase\Services\Checkout\ReleaseCheckoutService;
 use App\Domains\Purchase\Services\Checkout\StartCheckoutService;
 use App\Domains\Tenant\Models\Tenant;
-use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\DB;
 
 /**