chore: fix phpstan errors

src/BusProNet/Model/AgeConstraintResult.php

@@ -12,6 +12,7 @@ namespace App\BusProNet\Model;
  */
 class AgeConstraintResult
 {
+    /** @param array<string, mixed> $metadata */
     public function __construct(
         public readonly string $type,
         public readonly ?int $ageFrom = null,