Fix PHpstan errors and fix dezerialize provider namespace

phpstan.neon

@@ -77,6 +77,7 @@ parameters:
         - '/Method Sylius\\Component\\Resource\\Model\\TimestampableInterface\:\:setCreatedAt\(\) has no return type specified\./'
         - '/Method Sylius\\Component\\Resource\\Model\\TimestampableInterface\:\:setUpdatedAt\(\) has no return type specified\./'
         - '/Method Sylius\\Component\\Resource\\Repository\\InMemoryRepository\:\:findAll\(\) should return array\<object\> but returns array\./'
+        - '/Method Sylius\\Resource\\State\\Provider\\DeserializeProvider\:\:provide\(\) should return array\|object\|null but returns mixed./'
         - '/Method Sylius\\Resource\\Symfony\\EventDispatcher\\GenericEvent\:\:stop\(\) has no return type specified./'
         - '/Method Sylius\\Bundle\\ResourceBundle\\Form\\Extension\\HttpFoundation\\HttpFoundationRequestHandler::handleRequest\(\) has no return type specified./'
         - '/Method Sylius\\Bundle\\ResourceBundle\\Grid\\Controller\\ResourcesResolver::getResources\(\) has no return type specified./'

src/Component/Tests/State/Provider/DeserializeProviderTest.php

@@ -16,12 +16,12 @@
 use PHPUnit\Framework\TestCase;
 use Prophecy\PhpUnit\ProphecyTrait;
 use Prophecy\Prophecy\ObjectProphecy;
-use Sylius\Component\Resource\src\State\Provider\DeserializeProvider;
 use Sylius\Resource\Context\Context;
 use Sylius\Resource\Context\Option\RequestOption;
 use Sylius\Resource\Metadata\Delete;
 use Sylius\Resource\Metadata\HttpOperation;
 use Sylius\Resource\Metadata\ResourceMetadata;
+use Sylius\Resource\State\Provider\DeserializeProvider;
 use Sylius\Resource\State\ProviderInterface;
 use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\Request;

src/Component/src/State/Provider/DeserializeProvider.php

@@ -11,7 +11,7 @@
 
 declare(strict_types=1);
 
-namespace Sylius\Component\Resource\src\State\Provider;
+namespace Sylius\Resource\State\Provider;
 
 use Sylius\Resource\Context\Context;
 use Sylius\Resource\Context\Option\RequestOption;