[code-quality] Replace compact() with real values

```diff
$checkout = checkout();
$form     = $this->createForm(DeliveryType::class, DeliveryData::createFrom($checkout))->createView();

-return $this->render('@FrontendBundle/checkout/delivery.html.twig', compact('checkout', 'form'));
+return $this->render('@FrontendBundle/checkout/delivery.html.twig', [
+    'checkout' => $checkout,
+    'form' => $form,
+]);
```