Hi,

I have noticed when using the CLI that doing ruff format . ignores Jupyter notebooks.
I believe this a deviation from black, which effectively formats notebooks with black ., with the right dependencies installed.

It's only possible to format notebooks when the filename is provided, which forces me to iterate over files to format all my notebooks.
I have looked at the documentation and other issues, and I'm on the latest version of Ruff (v0.5.0).

Would it be possible to add an option to fix this issue?
Thanks