chore(deps): bump cachetools from 6.2.0 to 6.2.1

Bumps [cachetools](https://github.com/tkem/cachetools) from 6.2.0 to 6.2.1.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/tkem/cachetools/compare/v6.2.0...v6.2.1)

---
updated-dependencies:
- dependency-name: cachetools
  dependency-version: 6.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -15,7 +15,7 @@ python-telegram-bot==22.5
 # can't be hard-pinned due to telegram-bot pinning httpx with ~
 httpx>=0.24.1
 humanize==4.13.0
-cachetools==6.2.0
+cachetools==6.2.1
 requests==2.32.5
 urllib3==2.5.0
 certifi==2025.10.5