feat: update RDAP server url every month

src/Scheduler/UpdateRdapServersSchedule.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Scheduler;
+
+use App\Message\UpdateRdapServers;
+use Symfony\Component\Scheduler\Attribute\AsSchedule;
+use Symfony\Component\Scheduler\RecurringMessage;
+use Symfony\Component\Scheduler\Schedule;
+use Symfony\Component\Scheduler\ScheduleProviderInterface;
+use Symfony\Contracts\Cache\CacheInterface;
+
+#[AsSchedule]
+final readonly class UpdateRdapServersSchedule implements ScheduleProviderInterface
+{
+    public function __construct(
+        private CacheInterface $cache,
+    )
+    {
+    }
+
+    public function getSchedule(): Schedule
+    {
+        return (new Schedule())
+            ->add(
+                RecurringMessage::every('1 month', new UpdateRdapServers()),
+            )->stateful($this->cache);
+    }
+}