ruff

d9c15e7a - [Ecosystem checks] `trio` has changed its default branch name to `main` (#12225)

[Ecosystem checks] `trio` has changed its default branch name to `main` (#12225) Fixes CI errors seen in https://github.com/astral-sh/ruff/pull/12224#issuecomment-2212594024 x-ref https://github.com/python-trio/trio/commit/17b3644f64b4bb10176e789dc23a8b57b1399f89