Telegram Integration: pipeline status change notifications not work

Need to fix pipeline trigger into Telegram Integration.

Steps to reproduce

1. Register the bot via @botfather
2. Create a channel for notifications
3. Add the new bot to the channel, and make it admin
4. Get the bot token, and channel ID, and put them into the according fields on the "Telegram Integration" page in the Group settings
5. Enable "A pipeline status changes" trigger
6. Save changes
7. Run any pipeline in a project in this group
8. Check the notifications channel on Telegram

What is the current bug behavior?

Notifications about any pipeline status change are not coming, whereas another type of notifications work

What is the expected correct behavior?

Notifications about any pipeline status change should work

Relevant logs and/or screenshots

Screenshots

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