* Add support for sending telegram messages to topics
Based on original PR #104059 by [jgresty](https://github.com/jgresty).
Did not manage to merge conflicts, so I remade the changes from scratch, including suggestions from previous PR reviews.
Topics were added to telegram groups in November 2022, and to the
telegram-bot library in version 20.0. They are a purely additive change
that is exposed by a single parameter `message_thread_id`. Not passing
this parameter will not change the behaviour from current.
This same parameter is used to send messages to threads and messages to
topics inside groups.
https://telegram.org/blog/topics-in-groups-collectible-usernames/it?setln=en#topics-in-groupsFixes#81888Fixes#91750
* telegram_bot: add tests for threads feature.
* telegram_bot: fixed tests for threads.
* telegram_bot: fixed wrong line.
* Update test_telegram_bot.py
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Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: Erik Montnemery <erik@montnemery.com>
