fix: enable bookings without ski passes

tests/Service/BookingEditPreFlightCheckerTest.php

@@ -21,6 +21,7 @@ use App\Form\Service\ServiceAgeEvaluator;
 use App\Validator\Constraints\MandatoryAdditionalServicesSelectedValidator;
 use App\Validator\Constraints\PromoVoucherValidator;
 use App\Validator\Constraints\PurchaseVoucherValidator;
+use App\Validator\Constraints\SkiPassSelectionValidator;
 use Carbon\CarbonImmutable;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Validator\Constraint;
@@ -291,6 +292,10 @@ class BookingEditPreFlightCheckerTest extends TestCase
                     );
                 }
 
+                if (SkiPassSelectionValidator::class === $className) {
+                    return new SkiPassSelectionValidator($this->participantEligibilityChecker);
+                }
+
                 return new $className();
             }
         };