Bump cachetools from 5.4.0 to 5.5.0

Bumps [cachetools](https://github.com/tkem/cachetools) from 5.4.0 to 5.5.0.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](tkem/cachetools@v5.4.0...v5.5.0)

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

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