Fix support for Django 4.1

The SuccessURLAllowedHostsMixin was replaced by RedirectURLMixin as per Django 4.1 documentation "The undocumented django.contrib.auth.views.SuccessURLAllowedHostsMixin mixin is replaced by RedirectURLMixin."

Source
https://docs.djangoproject.com/en/4.1/releases/4.1/

cookie_consent/compat.py

@@ -2,3 +2,8 @@
     from django.utils.http import url_has_allowed_host_and_scheme
 except ImportError:  # django < 3.0
     from django.utils.http import is_safe_url as url_has_allowed_host_and_scheme
+
+try:  # django >= 4.1
+    from django.contrib.auth.views import RedirectURLMixin
+except ImportError:
+    from django.contrib.auth.views import SuccessURLAllowedHostsMixin as RedirectURLMixin

cookie_consent/views.py

@@ -1,14 +1,13 @@
 # -*- coding: utf-8 -*-
 from django.core.exceptions import SuspiciousOperation
-from django.contrib.auth.views import SuccessURLAllowedHostsMixin
 from django.http import HttpResponseRedirect, HttpResponse
 from django.urls import reverse
 from django.views.generic import (
     ListView,
     View,
 )
 
-from .compat import url_has_allowed_host_and_scheme
+from .compat import RedirectURLMixin, url_has_allowed_host_and_scheme
 from .models import (
     CookieGroup,
 )
@@ -25,7 +24,7 @@ class CookieGroupListView(ListView):
     model = CookieGroup
 
 
-class CookieGroupBaseProcessView(SuccessURLAllowedHostsMixin, View):
+class CookieGroupBaseProcessView(RedirectURLMixin, View):
 
     def get_success_url(self):
         """