[pre-commit.ci] pre-commit autoupdate

[cphyc]

Supercedes #253

updates:

• github.com/pre-commit/pre-commit-hooks: v4.5.0 → v4.6.0
• github.com/asottile/pyupgrade: v3.15.1 → v3.17.0
• github.com/nbQA-dev/nbQA: 1.8.4 → 1.8.7
• use Python 3.8 as oldest version in config