Bump django-cors-headers from 3.14.0 to 4.4.0

Bumps [django-cors-headers](https://github.com/adamchainz/django-cors-headers) from 3.14.0 to 4.4.0.
- [Changelog](https://github.com/adamchainz/django-cors-headers/blob/main/CHANGELOG.rst)
- [Commits](adamchainz/django-cors-headers@3.14.0...4.4.0)

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

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

requirements/base.txt

@@ -4,7 +4,7 @@ django-allauth==0.63.3
 django-anymail[mailgun]==8.6
 django-autoslug==1.9.9  # https://github.com/justinmayer/django-autoslug
 django-ckeditor==6.7.1 # Todo: Unused, remove.
-django-cors-headers==3.14.0
+django-cors-headers==4.4.0
 django-crispy-forms==1.14.0  # https://github.com/django-crispy-forms/django-crispy-forms
 django-environ==0.11.2
 django-filebrowser-no-grappelli==4.0.2