[pre-commit.ci] pre-commit autoupdate (#2069)
[pre-commit.ci] pre-commit autoupdate (#2069)

updates:
- [github.com/psf/black: 21.11b1 → 21.12b0](https://github.com/psf/black/compare/21.11b1...21.12b0)

Co-authored-by: pre-commit-ci[bot] <3ea08453efb076ca910552532a53973a6527df40@users.noreply.github.com>
theislab/scanpy,theislab/scanpy