Bump isort from 6.1.0 to 7.0.0

Bumps [isort](https://github.com/PyCQA/isort) from 6.1.0 to 7.0.0.
- [Release notes](https://github.com/PyCQA/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](PyCQA/isort@6.1.0...7.0.0)

---
updated-dependencies:
- dependency-name: isort
  dependency-version: 7.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements/devel.txt

@@ -1,7 +1,7 @@
 -r readthedocs.txt
 tcms-api
 doc8
-isort==6.1.0
+isort==7.0.0
 colorama
 black==25.9.0
 locust==2.42.0