chore: code cleanup with rector and php-cs-fixer

tests/Model/NewsletterSubscriptionRequestTest.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace App\Tests\Model;
 
+use PHPUnit\Framework\TestCase;
 use App\Model\NewsletterSubscriptionRequest;
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\ConstraintValidatorFactory;
@@ -13,7 +14,7 @@ use Symfony\Component\Validator\Constraints\EmailValidator;
 use Symfony\Component\Validator\Validation;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
 
-class NewsletterSubscriptionRequestTest extends \PHPUnit\Framework\TestCase
+class NewsletterSubscriptionRequestTest extends TestCase
 {
     public function testValidRequestPassesValidation(): void
     {