chore(deps): update isort requirement

Updates the requirements on [isort](https://github.com/pycqa/isort) to permit the latest version.
- [Release notes](https://github.com/pycqa/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](PyCQA/isort@5.10.1...6.0.0)

---
updated-dependencies:
- dependency-name: isort
  dependency-type: direct:production
...

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

requirements/test.txt

@@ -1,7 +1,7 @@
 -r base.txt
 
 black ==24.8.0
-isort >=5.10.1, <6.0
+isort >=5.10.1, <7.0
 flake8 >=5.0.4, <8.0
 pytest
 pytest-cov