Update django-cors-headers requirement (#938)

Updates the requirements on [django-cors-headers](https://github.com/adamchainz/django-cors-headers) to permit the latest version.
- [Changelog](https://github.com/adamchainz/django-cors-headers/blob/main/CHANGELOG.rst)
- [Commits](adamchainz/django-cors-headers@3.11.0...4.0.0)

---
updated-dependencies:
- dependency-name: django-cors-headers
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -4,7 +4,7 @@ coverage>=4.5.3,<8.0
 codecov>=2.0.15,<3.0
 celery>=4.4.7,<5.0
 Django>=3.1.13,<4.0
-django-cors-headers>=3.11.0,<4.0
+django-cors-headers>=3.11.0,<5.0
 djangorestframework>=3.11.0,<4.0
 django-rest-knox>=4.1.0,<5.0
 django-filter>=2.2.0,<24.0