Bump django-modeltranslation from 0.15.2 to 0.16
Bump django-modeltranslation from 0.15.2 to 0.16

Bumps [django-modeltranslation](https://github.com/deschler/django-modeltranslation) from 0.15.2 to 0.16.
- [Release notes](https://github.com/deschler/django-modeltranslation/releases)
- [Changelog](https://github.com/deschler/django-modeltranslation/blob/master/CHANGELOG.md)
- [Commits](https://github.com/deschler/django-modeltranslation/compare/v0.15.2...v0.16.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
WikipediaLibrary/TWLight,WikipediaLibrary/TWLight,WikipediaLibrary/TWLight,WikipediaLibrary/TWLight,WikipediaLibrary/TWLight