[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/asottile/setup-cfg-fmt: v1.20.2 → v2.0.0](https://github.com/asottile/setup-cfg-fmt/compare/v1.20.2...v2.0.0)
- [github.com/asottile/pyupgrade: v2.37.2 → v2.37.3](https://github.com/asottile/pyupgrade/compare/v2.37.2...v2.37.3)
- [github.com/PyCQA/flake8: 4.0.1 → 5.0.2](https://github.com/PyCQA/flake8/compare/4.0.1...5.0.2)