Bump isort from 5.13.2 to 6.0.0 in /requirements

Bumps [isort](https://github.com/pycqa/isort) from 5.13.2 to 6.0.0.
- [Release notes](https://github.com/pycqa/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](PyCQA/isort@5.13.2...6.0.0)

---
updated-dependencies:
- dependency-name: isort
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements/lint.txt

@@ -1,3 +1,3 @@
 black==24.10.0
 flake8==7.1.1
-isort==5.13.2
+isort==6.0.0