Fix PHPStan errors

phpstan.neon

@@ -51,6 +51,7 @@ parameters:
         - '/Parameter \#1 \$array[0-9]? of function array_multisort expects array, array\|int given\./'
         - '/Parameter \#2 \$class of static method Webmozart\\Assert\\Assert::isInstanceOf\(\) expects class-string<object>, string given./'
         - '/Parameter \#1 \$objectOrClass of class ReflectionClass constructor expects class-string<object>|object, object|string given./'
+        - '/Parameter \#1 \$package of method Symfony\\Component\\DependencyInjection\\Alias::setDeprecated\(\)/'
         - '/Return typehint of method Sylius\\Bundle\\ResourceBundle\\Routing\\CrudRoutesAttributesLoader::getClassAttributes\(\) has invalid type ReflectionAttribute./'
         - '/Return typehint of method Sylius\\Bundle\\ResourceBundle\\Routing\\RoutesAttributesLoader::getClassAttributes\(\) has invalid type ReflectionAttribute./'
         - '/Unable to resolve the template type ExpectedType in call to method static method Webmozart\\Assert\\Assert::isInstanceOf\(\)/'

src/Bundle/Form/Extension/HttpFoundation/HttpFoundationRequestHandler.php

@@ -38,7 +38,7 @@ public function __construct(ServerParams $serverParams = null)
         $this->serverParams = $serverParams ?: new ServerParams();
     }
 
-    public function handleRequest(FormInterface $form, $request = null): void
+    public function handleRequest(FormInterface $form, mixed $request = null): void
     {
         if (!$request instanceof Request) {
             throw new UnexpectedTypeException($request, 'Symfony\Component\HttpFoundation\Request');
@@ -107,7 +107,7 @@ public function handleRequest(FormInterface $form, $request = null): void
         $form->submit($data, 'PATCH' !== $method);
     }
 
-    public function isFileUpload($data): bool
+    public function isFileUpload(mixed $data): bool
     {
         return $data instanceof File;
     }