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

updates:
- [github.com/psf/black: 21.10b0 → 21.12b0](https://github.com/psf/black/compare/21.10b0...21.12b0)
- [github.com/asottile/blacken-docs: v1.11.0 → v1.12.0](https://github.com/asottile/blacken-docs/compare/v1.11.0...v1.12.0)

pytest-dev/execnet