Replace pylint CI with ruff

[akx]

Describe what this pull request is trying to achieve.

This PR replaces the GitHub Actions lint action (that hasn't successfully run for a while) with a simple one based on the excellent Ruff linter.

• For a starting point, the configuration is extremely simple and only enables the E999 (Syntax Error) lint; i.e. ruff just checks that the code is syntactically valid Python 3.10+ code. If this is fine, we (or I - I don't mind doing the work) can enable a broader set of lints in a future PR; Ruff's default configuration already reveals some possible bugs.
• I left the broken pylint config in in the YAML file so it could be re-enabled easily later.
• As noted in the YAML, there is purposely no cache here, and we're also purposely not using a specific version of Python to avoid having to download a new one onto the runner. This makes the total run time for the CI about 8 seconds.

Additional notes and description of your changes

I've put in similar ruff work in in Gradio; see gradio-app/gradio#3710, gradio-app/gradio#3979, gradio-app/gradio#4038

Environment this was tested in

• OS: Windows (or well, Linux in GHA)
• Browser: irrelevant
• Graphics card: irrelevant

[AUTOMATIC1111]

Well that's neat.

I made a ruff branch with fixes suggested by the tool. Very likely nothing is broken as a result, but that's not guaranteed. After some testing I'll merge it into dev.

[akx]

@AUTOMATIC1111 Cool 🎉 Feel free to request a review from me if you decide to PR the ruff branch into dev. (In the medium term it would probably be very nice to be able to enable e.g. I and some unused-import fixes, but those will require untangling of some import dep chains within the codebase based on a short look I took yesterday. 😄)

[AUTOMATIC1111]

I went through all unused-import, almost all of them are removed except for a small subset that I don't want to remove becsause there is a distinct possibility that some extensions is using them. I also enabled I, except for I001 Import block is un-sorted.

https://github.com/AUTOMATIC1111/stable-diffusion-webui/blob/ruff/pyproject.toml

PR: #10259. It's not small.