Bump cachetools from 5.5.2 to 6.2.1

Bumps [cachetools](https://github.com/tkem/cachetools) from 5.5.2 to 6.2.1.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](tkem/cachetools@v5.5.2...v6.2.1)

---
updated-dependencies:
- dependency-name: cachetools
  dependency-version: 6.2.1
  dependency-type: indirect
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.txt

@@ -4,7 +4,7 @@
 #
 #    pip-compile
 #
-cachetools==5.5.2
+cachetools==6.2.1
     # via google-auth
 certifi==2025.10.5
     # via