[pre-commit.ci] pre-commit autoupdate (#91)
[pre-commit.ci] pre-commit autoupdate (#91)

updates:
- [github.com/PyCQA/isort: 5.8.0 → 5.10.0](https://github.com/PyCQA/isort/compare/5.8.0...5.10.0)
- https://github.com/ambv/black → https://github.com/psf/black
- [github.com/psf/black: 21.6b0 → 21.10b0](https://github.com/psf/black/compare/21.6b0...21.10b0)
- https://gitlab.com/pycqa/flake8 → https://github.com/PyCQA/flake8
- [github.com/PyCQA/flake8: 3.9.2 → 4.0.1](https://github.com/PyCQA/flake8/compare/3.9.2...4.0.1)
- [github.com/pre-commit/mirrors-mypy: v0.902 → v0.910-1](https://github.com/pre-commit/mirrors-mypy/compare/v0.902...v0.910-1)

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