Fix PHP 8.4 compability

Author: pierres

api/src/Serializer/FeedNormalizer.php

@@ -20,15 +20,15 @@ public function __construct(
     }
 
 
-    public function supportsNormalization(mixed $data, string $format = null, array $context = []): bool
+    public function supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool
     {
         return $data instanceof Feed;
     }
 
     /**
      * @param Feed $object
      */
-    public function normalize(mixed $object, string $format = null, array $context = []): array
+    public function normalize(mixed $object, ?string $format = null, array $context = []): array
     {
         /** @var array $data */
         $data = $this->normalizer->normalize(

api/src/Serializer/ItemNormalizer.php

@@ -21,15 +21,15 @@ public function __construct(
         $this->normalizer = $normalizer;
     }
 
-    public function supportsNormalization(mixed $data, string $format = null, array $context = []): bool
+    public function supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool
     {
         return $data instanceof Item;
     }
 
     /**
      * @param Item $object
      */
-    public function normalize(mixed $object, string $format = null, array $context = []): array
+    public function normalize(mixed $object, ?string $format = null, array $context = []): array
     {
         /** @var array $data */
         $data = $this->normalizer->normalize(

api/src/Serializer/PaginatorNormalizer.php

@@ -14,7 +14,7 @@ class PaginatorNormalizer implements NormalizerInterface, NormalizerAwareInterfa
     /**
      * @param Paginator<object> $object
      */
-    public function normalize(mixed $object, string $format = null, array $context = []): array
+    public function normalize(mixed $object, ?string $format = null, array $context = []): array
     {
         $objectIterator = $object->getIterator();
         assert($objectIterator instanceof \Countable);
@@ -28,7 +28,7 @@ public function normalize(mixed $object, string $format = null, array $context =
         ];
     }
 
-    public function supportsNormalization(mixed $data, string $format = null, array $context = []): bool
+    public function supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool
     {
         return $data instanceof Paginator;
     }