fix: ActionlogsHelper::getIp() does not exist in Joomla 5

Replace with direct REMOTE_ADDR fetch from input server.

Authored-by: Moko Consulting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

source/packages/plg_actionlog_mokojoombackup/src/Extension/MokoJoomBackupActionlog.php

@@ -15,7 +15,6 @@ defined('_JEXEC') or die;
 use Joomla\CMS\Event\Model;
 use Joomla\CMS\Factory;
 use Joomla\CMS\Plugin\CMSPlugin;
-use Joomla\Component\Actionlogs\Administrator\Helper\ActionlogsHelper;
 use Joomla\Event\Event;
 use Joomla\Event\SubscriberInterface;
 
@@ -142,7 +141,7 @@ final class MokoJoomBackupActionlog extends CMSPlugin implements SubscriberInter
 			'date'                 => date('Y-m-d H:i:s'),
 			'extension'            => 'com_mokojoombackup',
 			'user_id'              => $userId,
-			'ip_address'           => ActionlogsHelper::getIp(),
+			'ip_address'           => Factory::getApplication()->input->server->getString('REMOTE_ADDR', ''),
 			'item_id'              => $message['id'] ?? 0,
 		];