Update ruff requirement from ~=0.4 to ~=0.6 (#67)

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@v0.4.0...0.6.1)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Cyrill Raccaud <miaucl@users.noreply.github.com>

requirements_dev.txt

@@ -2,7 +2,7 @@ aiohttp~=3.10
 mypy>=1.8.0
 pre-commit>=3.6.1
 python-dotenv>=1.0.1
-ruff~=0.4
+ruff~=0.6
 mkdocs-material==9.5.33
 mkdocstrings[python]==0.25.2