Fix GreetingNormalizer::supportsNormalization

`Compile Error: Declaration of App\Rest\Serializer\GreetingNormalizer::supportsNormalization(mixed $data, ?string $format = null) must be compatible with Symfony\Component\Serializer\Normalizer\NormalizerInterface::supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool`

Author: adriendupuis

code_samples/api/rest_api/src/Rest/Serializer/GreetingNormalizer.php

@@ -11,7 +11,7 @@ class GreetingNormalizer implements NormalizerInterface, NormalizerAwareInterfac
 {
     use NormalizerAwareTrait;
 
-    public function supportsNormalization(mixed $data, ?string $format = null)
+    public function supportsNormalization(mixed $data, ?string $format = null, array $context = []): bool
     {
         return $data instanceof Greeting;
     }