Bump django-model-utils from 4.3.1 to 5.0.0

Bumps [django-model-utils](https://github.com/jazzband/django-model-utils) from 4.3.1 to 5.0.0.
- [Release notes](https://github.com/jazzband/django-model-utils/releases)
- [Changelog](https://github.com/jazzband/django-model-utils/blob/master/CHANGES.rst)
- [Commits](jazzband/django-model-utils@4.3.1...5.0.0)

---
updated-dependencies:
- dependency-name: django-model-utils
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

pyproject.toml

@@ -16,7 +16,7 @@ dependencies = [
     "django-formtools==2.3",
     "django-localflavor==4.0",
     "django-middleware-global-request==0.3.5",
-    "django-model-utils==4.3.1",
+    "django-model-utils==5.0.0",
     "django-storages==1.14.4",
     "djangorestframework==3.15.2",
     "djangorestframework-gis==1.1",