chore(deps): update dependency ruff to ^0.6.0 (#70)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

poetry.lock

@@ -32,7 +32,7 @@ gh-pages = ["tinycss2"]
 mypy = "^1.8.0"
 pytest = "^8.0.0"
 pytest-cov = "^5.0.0"
-ruff = "^0.5.0"
+ruff = "^0.6.0"
 types-pygments = "^2.17.0.20240106"
 types-colorama = "^0.4.15.20240205"