deps: update cachetools requirement

Updates the requirements on [cachetools](https://github.com/tkem/cachetools) to permit the latest version.
- [Changelog](https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst)
- [Commits](tkem/cachetools@v5.3.0...v6.2.4)

---
updated-dependencies:
- dependency-name: cachetools
  dependency-version: 6.2.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -12,7 +12,7 @@ httpx>=0.25.0,<1.0.0
 orjson>=3.9.0,<4.0.0
 
 # Caching
-cachetools>=5.3.0,<6.0.0
+cachetools>=5.3.0,<7.0.0
 
 # Configuration Management
 pydantic-settings>=2.0.0,<3.0.0