Bump psautohint from 2.0.1 to 2.3.1
Bump psautohint from 2.0.1 to 2.3.1

Bumps [psautohint](https://github.com/adobe-type-tools/psautohint) from 2.0.1 to 2.3.1.
- [Release notes](https://github.com/adobe-type-tools/psautohint/releases)
- [Changelog](https://github.com/adobe-type-tools/psautohint/blob/master/NEWS.md)
- [Commits](https://github.com/adobe-type-tools/psautohint/compare/v2.0.1...v2.3.1)

---
updated-dependencies:
- dependency-name: psautohint
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
googlefonts/nototools,googlefonts/nototools,googlefonts/nototools,googlefonts/nototools,googlefonts/nototools