[serializer] fix serializer for Symfony 6

src/Stubs/4/Component/Serializer/Normalizer/DenormalizerInterface.stubphp

@@ -0,0 +1,15 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface DenormalizerInterface
+{
+    /**
+     * @template TObject of object
+     * @template TType of string|class-string<TObject>
+     * @psalm-param mixed $data
+     * @psalm-param TType $type
+     * @psalm-return (TType is class-string<TObject> ? TObject : mixed)
+     */
+    public function denormalize($data, string $type, string $format = null, array $context = []);
+}

src/Stubs/5/Component/Serializer/Normalizer/DenormalizerInterface.stubphp

@@ -0,0 +1,15 @@
+<?php
+
+namespace Symfony\Component\Serializer\Normalizer;
+
+interface DenormalizerInterface
+{
+    /**
+     * @template TObject of object
+     * @template TType of string|class-string<TObject>
+     * @psalm-param mixed $data
+     * @psalm-param TType $type
+     * @psalm-return (TType is class-string<TObject> ? TObject : mixed)
+     */
+    public function denormalize($data, string $type, string $format = null, array $context = []);
+}

src/Stubs/5/Component/Serializer/SerializerInterface.stubphp

@@ -0,0 +1,15 @@
+<?php
+
+namespace Symfony\Component\Serializer;
+
+interface SerializerInterface
+{
+    /**
+     * @template TObject of object
+     * @template TType of string|class-string<TObject>
+     * @psalm-param mixed $data
+     * @psalm-param TType $type
+     * @psalm-return (TType is class-string<TObject> ? TObject : mixed)
+     */
+    public function deserialize($data, string $type, string $format, array $context = []);
+}

tests/acceptance/acceptance/serializer/SerializerInterface6.feature

@@ -50,12 +50,12 @@ Feature: Serializer interface
 
       final class Serializer implements SerializerInterface
       {
-        public function serialize($data, string $format, array $context = []): string
+        public function serialize(mixed $data, string $format, array $context = []): string
         {
           return '';
         }
 
-        public function deserialize($data, string $type, string $format, array $context = []): mixed
+        public function deserialize(mixed $data, string $type, string $format, array $context = []): mixed
         {
           return [];
         }