`ruff check` can run without the `.` parameter, so this argument isn’t really necessary.
If someone wants to customize the behavior, they can use `ruff-args`.
| `ruff-files` / `RUFF_FILES` | Files or directories to analyse | . |
:warning: Ruff can replace isort, Bandit, Pylint and much more. [More info](https://github.com/astral-sh/ruff/blob/main/docs/faq.md#which-tools-does-ruff-replace).