Black infers target-version from requires-python in pyproject.toml

Author: radarhere

Makefile

@@ -118,6 +118,6 @@ lint:
 .PHONY: lint-fix
 lint-fix:
 	python3 -c "import black" > /dev/null 2>&1 || python3 -m pip install black
-	python3 -m black --target-version py38 .
+	python3 -m black .
 	python3 -c "import ruff" > /dev/null 2>&1 || python3 -m pip install ruff
 	python3 -m ruff --fix .