Update django-cors-headers requirement from <4.4,>=4.0 to >=4.0,<4.5

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@4.0.0...4.4.0)

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

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

requirements/base.txt

@@ -2,7 +2,7 @@ django>=4.2,<4.3
 djangorestframework>=3.15.2,<3.16
 markdown>=3.2,<3.6
 django-filter>=2.4,<23.6
-django-cors-headers>=4.0,<4.4
+django-cors-headers>=4.0,<4.5
 django-userforeignkey>=0.3,<0.6
 django-rest-multitokenauth>=1.4.0,<1.6.0
 django-rest-registration>=0.8.3,<0.9