fix: avoid another null pointer exception

src/Entity/Destination.php

@@ -175,8 +175,12 @@ class Destination implements TimestampableEntityInterface, SoftDeletableEntityIn
         return $this;
     }
 
-    public function getPickup(int $id): ?Pickup
+    public function getPickup(?int $id): ?Pickup
     {
+        if (null === $id) {
+            return null;
+        }
+
         foreach ($this->getPickups() as $pickup) {
             if ($id === $pickup['busProId']) {
                 return Pickup::fromArray($pickup);