Fix: Correct Collection import to resolve TypeError in RefundItemColl…

…ection. (#265)

Co-authored-by: Bobab12 <[email protected]>

src/Refunds/RefundItemCollection.php

@@ -4,7 +4,7 @@
 
 namespace Laravel\Cashier\Refunds;
 
-use Illuminate\Support\Collection;
+use Illuminate\Database\Eloquent\Collection;
 use Laravel\Cashier\Cashier;
 use Laravel\Cashier\Order\OrderItem;
 use Laravel\Cashier\Order\OrderItemCollection;