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

updates:
- [github.com/asottile/pyupgrade: v2.34.0 → v2.37.2](https://github.com/asottile/pyupgrade/compare/v2.34.0...v2.37.2)
- [github.com/pre-commit/mirrors-mypy: v0.961 → v0.971](https://github.com/pre-commit/mirrors-mypy/compare/v0.961...v0.971)

pimutils/khal