www/py-django-cors-headers: Update to 4.3.0

Changelog:

https://github.com/adamchainz/django-cors-headers/blob/4.3.0/CHANGELOG.rst

www/py-django-cors-headers/Makefile

 PORTNAME=	django-cors-headers
-PORTVERSION=	4.2.0
+PORTVERSION=	4.3.0
 CATEGORIES=	www python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

www/py-django-cors-headers/distinfo

-TIMESTAMP = 1689168127
-SHA256 (django_cors_headers-4.2.0.tar.gz) = f9749c6410fe738278bc2b6ef17f05195bc7b251693c035752d8257026af024f
-SIZE (django_cors_headers-4.2.0.tar.gz) = 21183
+TIMESTAMP = 1698413255
+SHA256 (django_cors_headers-4.3.0.tar.gz) = 25aabc94d4837678c1edf442c7f68a5f5fd151f6767b0e0b01c61a2179d02711
+SIZE (django_cors_headers-4.3.0.tar.gz) = 21305