Bump cachelib from 0.12.0 to 0.13.0 in /app

Bumps [cachelib](https://github.com/pallets-eco/cachelib) from 0.12.0 to 0.13.0.
- [Release notes](https://github.com/pallets-eco/cachelib/releases)
- [Changelog](https://github.com/pallets-eco/cachelib/blob/main/CHANGES.rst)
- [Commits](pallets-eco/cachelib@0.12.0...0.13.0)

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

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

app/requirements.txt

@@ -3,4 +3,4 @@ flask-paginate==2023.10.24
 Flask-Session==0.7.0
 gunicorn==21.2.0
 requests==2.31.0
-cachelib==0.12.0
+cachelib==0.13.0