Remove usage of deprecated Role class

src/Bundle/ChillPersonBundle/Tests/Form/Type/PickPersonTypeTest.php

@@ -133,7 +133,7 @@ final class PickPersonTypeTest extends KernelTestCase
         $this->markTestSkipped('need to inject locale into url generator without request');
         $form = $this->formFactory
             ->createBuilder(PickPersonType::class, null, [
-                'role' => new \Symfony\Component\Security\Core\Role\Role('INVALID'),
+                'role' => 'INVALID',
             ])
             ->getForm();