Update requests requirement from ~=2.27.1 to ~=2.28.1 in /telegram_bot

Updates the requirements on [requests](https://github.com/psf/requests) to permit the latest version.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](https://github.com/psf/requests/compare/v2.27.1...v2.28.1)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: direct:production
...

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

telegram_bot/requirements.txt

@@ -2,7 +2,7 @@ pyTelegramBotAPI~=4.5.0
 Markdown~=3.3.6
 newsapi-python~=0.2.6
 python-dotenv~=0.20.0
-requests~=2.27.1
+requests~=2.28.1
 APScheduler~=3.9.1
 croniter~=1.3.4
 tzlocal==2.1