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

updates:
- [github.com/asottile/pyupgrade: v2.19.4 → v2.20.0](https://github.com/asottile/pyupgrade/compare/v2.19.4...v2.20.0)

ocefpaf/python-ctd,pyoceans/python-ctd