misc_pterodactyl-panel/app/Http/Requests/Api/Application/Nodes/UpdateNodeRequest.php

<?php

namespace Pterodactyl\Http\Requests\Api\Application\Nodes;

use Pterodactyl\Models\Node;

class UpdateNodeRequest extends StoreNodeRequest
{
    public function rules(array $rules = null): array
    {
        return parent::rules($rules ?? Node::getRulesForUpdate($this->route()->parameter('node')->id));
    }
}