Bump isort from 8.0.1 to 9.0.1

Bumps [isort](https://github.com/PyCQA/isort) from 8.0.1 to 9.0.1.
- [Release notes](https://github.com/PyCQA/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](PyCQA/isort@8.0.1...9.0.1)

---
updated-dependencies:
- dependency-name: isort
  dependency-version: 9.0.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -69,7 +69,7 @@ dev-flake8 = [
   "pydoclint == 0.9.1",
   "pydocstyle == 6.3.0",
 ]
-dev-formatting = ["black == 26.5.1", "isort == 8.0.1"]
+dev-formatting = ["black == 26.5.1", "isort == 9.0.1"]
 dev-mkdocs = [
   "black == 26.5.1",
   "Markdown == 3.10.3",