chore(deps): bump python-telegram-bot from 21.3 to 21.4

Bumps [python-telegram-bot](https://github.com/python-telegram-bot/python-telegram-bot) from 21.3 to 21.4.
- [Release notes](https://github.com/python-telegram-bot/python-telegram-bot/releases)
- [Changelog](https://github.com/python-telegram-bot/python-telegram-bot/blob/master/CHANGES.rst)
- [Commits](https://github.com/python-telegram-bot/python-telegram-bot/compare/v21.3...v21.4)

---
updated-dependencies:
- dependency-name: python-telegram-bot
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -8,7 +8,7 @@ ccxt==4.3.58
 cryptography==42.0.8
 aiohttp==3.9.5
 SQLAlchemy==2.0.31
-python-telegram-bot==21.3
+python-telegram-bot==21.4
 # can't be hard-pinned due to telegram-bot pinning httpx with ~
 httpx>=0.24.1
 humanize==4.9.0