Update ruff requirement from 0.3.7 to 0.4.0 (#552)

Updates the requirements on [ruff](https://github.com/astral-sh/ruff) to permit the latest version.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@v0.3.7...v0.4.0)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:development
...

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pyproject.toml

@@ -34,7 +34,7 @@ ipython = "8.23.0"
 isort = "5.13.2"
 myst-parser = "2.0.0"
 pep8 = "1.7.1"
-ruff = "0.3.7"
+ruff = "0.4.0"
 pylint = "3.1.0"
 pytest = "8.1.1"
 pytest-cov = "5.0.0"