Bump oj from 3.7.8 to 3.7.9
Bump oj from 3.7.8 to 3.7.9

Bumps [oj](https://github.com/ohler55/oj) from 3.7.8 to 3.7.9.
- [Release notes](https://github.com/ohler55/oj/releases)
- [Changelog](https://github.com/ohler55/oj/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ohler55/oj/compare/v3.7.8...v3.7.9)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
WikiEducationFoundation/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard