IBX-9678: JsonSerializableNormalizer return type mismatch causing 500 error (#160)

* added array as a possible return type

* added tests for the array return with a dummy "MoneyObject"

* fix-cs

* phpstan fix

* fixed test

* removed JsonSerializableNormalizer in favour of Symfony counterpart

* cr remark

---------

Co-authored-by: konradoboza <[email protected]>

Author: Sztig

src/bundle/Resources/config/serializer.yaml

@@ -29,7 +29,8 @@ services:
         tags:
             - { name: ibexa.rest.serializer.normalizer, priority: -400 }
 
-    Ibexa\Rest\Output\Normalizer\JsonSerializableNormalizer:
+    ibexa.rest.serializer.json_serializable_normalizer:
+        class: Symfony\Component\Serializer\Normalizer\JsonSerializableNormalizer
         tags:
             - { name: ibexa.rest.serializer.normalizer, priority: -600 }