Update isort requirement in /tools in the python-packages group

Updates the requirements on [isort](https://github.com/PyCQA/isort) to permit the latest version.

Updates `isort` to 6.0.1
- [Release notes](https://github.com/PyCQA/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](PyCQA/isort@6.0.0...6.0.1)

---
updated-dependencies:
- dependency-name: isort
  dependency-type: direct:production
  dependency-group: python-packages
...

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

tools/requirements.txt

@@ -3,6 +3,6 @@ MarkupSafe==3.0.2
 requests~=2.32.3
 mypy~=1.15
 black~=25.1.0
-isort~=6.0.0
+isort~=6.0.1
 flake8~=7.1.2
 types-requests~=2.32.0