Bump django from 3.2.12 to 4.0.3

Bumps [django](https://github.com/django/django) from 3.2.12 to 4.0.3.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.2.12...4.0.3)

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

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

Author: dependabot[bot]

requirements/base.txt

@@ -8,7 +8,7 @@ hiredis==2.0.0  # https://github.com/redis/hiredis-py
 
 # Django
 # ------------------------------------------------------------------------------
-django==3.2.12  # pyup: < 4.0  # https://www.djangoproject.com/
+django==4.0.3  # pyup: < 4.0  # https://www.djangoproject.com/
 django-environ==0.8.1  # https://github.com/joke2k/django-environ
 django-model-utils==4.2.0  # https://github.com/jazzband/django-model-utils
 django-allauth==0.49.0  # https://github.com/pennersr/django-allauth