[pre-commit.ci] pre-commit autoupdate (#2078)
[pre-commit.ci] pre-commit autoupdate (#2078)

updates:
- [github.com/asottile/pyupgrade: v2.18.2 → v2.19.0](https://github.com/asottile/pyupgrade/compare/v2.18.2...v2.19.0)
- [github.com/psf/black: 21.5b1 → 21.5b2](https://github.com/psf/black/compare/21.5b1...21.5b2)

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