Merge pull request #1418 from nationalarchives/renovate/django-model-utils-4.x

Update dependency django-model-utils to v4.4.0

Author: dragon-dxw

requirements/base.txt

@@ -6,7 +6,7 @@ whitenoise==6.6.0  # https://github.com/evansd/whitenoise
 # ------------------------------------------------------------------------------
 django==3.2.25  # pyup: < 4.0  # https://www.djangoproject.com/
 django-environ>=0.11.0  # https://github.com/joke2k/django-environ
-django-model-utils==4.3.1  # https://github.com/jazzband/django-model-utils
+django-model-utils==4.4.0  # https://github.com/jazzband/django-model-utils
 django-allauth==0.61.1  # https://github.com/pennersr/django-allauth
 django-waffle==4.1.0  # https://github.com/django-waffle/django-waffle
 django-widget-tweaks==1.5.0  # https://github.com/jazzband/django-widget-tweaks