chore(deps): bump cachetools from 6.2.0 to 6.2.2 in /docker

Bumps [cachetools](https://github.com/tkem/cachetools) from 6.2.0 to 6.2.2.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](tkem/cachetools@v6.2.0...v6.2.2)

---
updated-dependencies:
- dependency-name: cachetools
  dependency-version: 6.2.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

docker/requirements.txt

@@ -1,4 +1,4 @@
-cachetools==6.2.0
+cachetools==6.2.2
 PyYAML==6.0.2
 certifi==2025.8.3
 kubernetes==33.1.0