Bump cachetools from 5.5.1 to 5.5.2 (#3478)

Bumps [cachetools](https://github.com/tkem/cachetools) from 5.5.1 to 5.5.2.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/tkem/cachetools/compare/v5.5.1...v5.5.2)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

test-requirements.txt

@@ -23,7 +23,7 @@ attrs==25.1.0
     #   referencing
 bcrypt==4.2.1
     # via modoboa (pyproject.toml)
-cachetools==5.5.1
+cachetools==5.5.2
     # via tox
 caldav==1.4.0
     # via modoboa (pyproject.toml)