[pre-commit.ci] pre-commit autoupdate (#456)
[pre-commit.ci] pre-commit autoupdate (#456)

updates:
- [github.com/psf/black: 21.7b0 → 21.8b0](https://github.com/psf/black/compare/21.7b0...21.8b0)

Co-authored-by: pre-commit-ci[bot] <3ea08453efb076ca910552532a53973a6527df40@users.noreply.github.com>
Co-authored-by: Co Quach <a2f41c5129449aab4dc24a8ff0544352b5fb9f1d@gmail.com>
mosdef-hub/foyer,mosdef-hub/foyer