[pre-commit.ci] pre-commit autoupdate
[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/PyCQA/flake8: 3.9.0 → 3.9.1](https://github.com/PyCQA/flake8/compare/3.9.0...3.9.1)
- [github.com/asottile/pyupgrade: v2.11.0 → v2.12.0](https://github.com/asottile/pyupgrade/compare/v2.11.0...v2.12.0)

nicoddemus/pytest-xdist,pytest-dev/pytest-xdist