Build(deps-dev): Update mimmi20/json-class requirement
Build(deps-dev): Update mimmi20/json-class requirement

Updates the requirements on [mimmi20/json-class](https://github.com/mimmi20/json-class) to permit the latest version.
- [Release notes](https://github.com/mimmi20/json-class/releases)
- [Commits](https://github.com/mimmi20/json-class/compare/2.0.11...2.0.12)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
mimmi20/ua-result