Bump ruff from 0.6.8 to 0.6.9

Author: merger-application[bot]

Pipfile

@@ -18,5 +18,5 @@ black = "==24.8.0"
 mypy = "==1.11.2"
 types-setuptools = "==75.1.0.20240917"
 tbump = "==6.11.0"
-ruff = "==0.6.8"
+ruff = "==0.6.9"
 rstcheck = {version = "==6.2.4", extras = ["sphinx", "toml"]}