ruff

cd0c9721 - [red-knot] Update KNOWN_FAILURES (#14612)

[red-knot] Update KNOWN_FAILURES (#14612) ## Summary Remove entry that was prevously fixed in 5a30ec0df6478b98071004a1a9255e876c5d5c32. ## Test Plan ```sh cargo test -p red_knot_workspace -- --ignored linter_af linter_gz ```