Bump python-telegram-bot from 13.15 to 20.0

Bumps [python-telegram-bot](https://github.com/python-telegram-bot/python-telegram-bot) from 13.15 to 20.0.
- [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](python-telegram-bot/python-telegram-bot@v13.15...v20.0)

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

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

requirements.txt

@@ -1,7 +1,7 @@
 colorama==0.4.6
 configparser==5.3.0
 psutil==5.9.4
-python-telegram-bot==13.15
+python-telegram-bot==20.0
 pyyaml==6.0
 requests==2.28.1
 python-i18n==0.3.9