Don't run black from cursorless-talon repo (#2312)

There's no point in running it there, as it's just a git subtree, so
it's covered by ruff formatter here. It didn't matter before, but now
that we use ruff formatter instead of black here, we get lint failures
there, so I figure we might as well just not bother running a linter
there

## Checklist

- [-] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [-] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [-] I have not broken the cheatsheet

Author: pokey