apply rector rules

src/Bundle/ChillActivityBundle/DataFixtures/ORM/LoadActivity.php

@@ -25,10 +25,7 @@ class LoadActivity extends AbstractFixture implements OrderedFixtureInterface
 {
     use \Symfony\Component\DependencyInjection\ContainerAwareTrait;
 
-    /**
-     * @var \Faker\Generator
-     */
-    private $faker;
+    private readonly \Faker\Generator $faker;
 
     public function __construct(private readonly EntityManagerInterface $em)
     {