chore(v4): compatibility with ting v4

composer.json

@@ -5,7 +5,7 @@
     "license": "Apache-2.0",
     "require": {
         "php": ">=8.1",
-        "ccmbenchmark/ting": "^3.11",
+        "ccmbenchmark/ting": "^3.11 || ^4.0",
         "doctrine/cache": "^1.10",
         "symfony/validator": "^4.4 || ^5.0 || ^6.0 || ^7.0",
         "symfony/http-kernel": "^4.4 || ^5.0 || ^6.0 || ^7.0",

src/TingBundle/Serializer/SymfonySerializer.php

@@ -8,13 +8,13 @@ class SymfonySerializer implements SerializerInterface
 {
     public function __construct(private readonly ?\Symfony\Component\Serializer\SerializerInterface $serializer = null) {}
 
-    public function serialize($toSerialize, array $options = [])
+    public function serialize($toSerialize, array $options = []): mixed
     {
         $this->throwOnNullSerializer();
         return $this->serializer->serialize($toSerialize, 'json', $options['context'] ?? []);
     }
 
-    public function unserialize($serialized, array $options = [])
+    public function unserialize($serialized, array $options = []): mixed
     {
         if ($serialized === null) {
             return null;
@@ -32,4 +32,4 @@ private function throwOnNullSerializer()
             throw new \RuntimeException('SymfonySerializer requires symfony/serializer to be installed. Use composer require symfony/serializer to add it.');
         }
     }
-}
+}