Add ChatJoinRequestEvent class

src/TgBotLib/Events/ChatJoinRequestEvent.php

@@ -0,0 +1,21 @@
+<?php
+
+    namespace TgBotLib\Events;
+
+    use TgBotLib\Abstracts\UpdateEvent;
+    use TgBotLib\Bot;
+    use TgBotLib\Enums\EventType;
+    use TgBotLib\Objects\ChatJoinRequest;
+
+    abstract class ChatJoinRequestEvent extends UpdateEvent
+    {
+        public static function getEventType(): EventType
+        {
+            return EventType::CHAT_JOIN_REQUEST_EVENT;
+        }
+
+        protected function getChatJoinRequest(): ChatJoinRequest
+        {
+            return $this->update->getChatJoinRequest();
+        }
+    }