chore: update test to fix deprecation warning

tests/Form/Model/ParticipantEditDtoTest.php

@@ -14,6 +14,8 @@ use App\Validator\Constraints\PromoVoucherValidator;
 use App\Validator\Constraints\PurchaseVoucherValidator;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\Constraints\Email;
+use Symfony\Component\Validator\Constraints\EmailValidator;
 use Symfony\Component\Validator\ConstraintValidatorFactoryInterface;
 use Symfony\Component\Validator\ConstraintValidatorInterface;
 use Symfony\Component\Validator\Validation;
@@ -56,6 +58,10 @@ class ParticipantEditDtoTest extends TestCase
                     return new PromoVoucherValidator($this->voucherService, $this->priceCalculatorService);
                 }
 
+                if (EmailValidator::class === $className) {
+                    return new EmailValidator(Email::VALIDATION_MODE_HTML5);
+                }
+
                 return new $className();
             }
         };