Bump cachetools from 5.3.1 to 5.4.0

Bumps [cachetools](https://github.com/tkem/cachetools) from 5.3.1 to 5.4.0.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](tkem/cachetools@v5.3.1...v5.4.0)

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

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

requirements.txt

@@ -26,7 +26,7 @@ billiard==4.2.0
     # via celery
 btrees==6.0
     # via zodb
-cachetools==5.3.1
+cachetools==5.4.0
     # via large-image
 cairocffi==0.9.0
     # via