Bump cachetools from 4.1.1 to 4.2.0

Bumps [cachetools](https://github.com/tkem/cachetools) from 4.1.1 to 4.2.0.
- [Release notes](https://github.com/tkem/cachetools/releases)
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/tkem/cachetools/compare/v4.1.1...v4.2.0)

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

requirements.txt

@@ -6,7 +6,7 @@ aiohttp==3.7.3
 SQLAlchemy==1.3.20
 python-telegram-bot==13.1
 arrow==0.17.0
-cachetools==4.1.1
+cachetools==4.2.0
 requests==2.25.0
 urllib3==1.26.2
 wrapt==1.12.1