build(deps): bump django-tenants from 3.6.1 to 3.7.0

Bumps [django-tenants](https://github.com/django-tenants/django-tenants) from 3.6.1 to 3.7.0.
- [Release notes](https://github.com/django-tenants/django-tenants/releases)
- [Changelog](https://github.com/django-tenants/django-tenants/blob/master/CHANGES.rst)
- [Commits](django-tenants/django-tenants@v3.6.1...v3.7.0)

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

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