title: Telegram Bot Webhook doesn't track channel post deletion
body: <p>I need to synchronize telegram channel posts with my site. So, I created a bot, a channel, added my bot to this channel(with admin rights, it has access to messages) and binded my bot's webhook to the specified server url. Everything goes well, post creation updates are correctly sent to the server url. The only problem is that the update of channel post deletion from telegram is not tracked, so admin has manually delete posts from the server database. Any idea, how to set up bot or webhook in order to track post deletion?</p>