refactor(security): type firewall policy events

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

core/lib/Security/Event/IpBlockedEvent.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXC\Security\Event;
+
+final class IpBlockedEvent extends FirewallIpEvent
+{
+    protected const SEVERITY = SecurityEvent::SEVERITY_CRITICAL;
+}