DEP(deps): Update cachetools requirement from ~=6.2.5 to ~=6.2.6

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@v6.2.5...v6.2.6)

---
updated-dependencies:
- dependency-name: cachetools
  dependency-version: 6.2.6
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requeriments.txt

@@ -1,7 +1,7 @@
 pytest
 requests~=2.32.5
 six>=1.16,<2
-cachetools~=6.2.5
+cachetools~=6.2.6
 pycryptodome~=3.23
 pytz~=2025.2
 confuse~=2.1.0