DEP(deps): Update cachetools requirement from ~=7.2.4 to ~=7.2.6

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@v7.2.4...v7.2.6)

---
updated-dependencies:
- dependency-name: cachetools
  dependency-version: 7.2.5
  dependency-type: direct:production
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -6,7 +6,7 @@ requests~=2.34.2
 
 boto3~=1.43.119
 
-cachetools~=7.2.4
+cachetools~=7.2.6
 setuptools~=84.2.1
 pytz~=2026.5
 confuse~=2.3.0

requirements.txt

@@ -3,7 +3,7 @@ httpx>=0.28.1
 
 boto3~=1.43.119
 
-cachetools~=7.2.4
+cachetools~=7.2.6
 setuptools~=84.2.1
 pytz~=2026.5
 confuse~=2.3.0