Bump jsonfield from 1.0.3 to 3.1.0
Bump jsonfield from 1.0.3 to 3.1.0

Bumps [jsonfield](https://github.com/rpkilby/jsonfield) from 1.0.3 to 3.1.0.
- [Release notes](https://github.com/rpkilby/jsonfield/releases)
- [Changelog](https://github.com/rpkilby/jsonfield/blob/master/CHANGES.rst)
- [Commits](https://github.com/rpkilby/jsonfield/compare/1.0.3...3.1.0)

---
updated-dependencies:
- dependency-name: jsonfield
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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