Update ruff requirement from ^0.1.9 to ^0.2.1

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@v0.1.9...v0.2.1)

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

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

pyproject.toml

@@ -34,7 +34,7 @@ mypy = "^1.1.1"
 
 [tool.poetry.group.linting.dependencies]
 black = "^23.1.0"
-ruff = "^0.1.9"
+ruff = "^0.2.1"
 codespell = "^2.2.5"
 
 [build-system]