Fixbug Fixing urls to support django 4, older versions

Author: islam kamel

rest_framework_social_oauth2/urls.py

@@ -1,4 +1,9 @@
-from django.conf.urls import url, include
+from django.conf.urls import include
+try:
+    from django.conf.urls import url
+except ImportError:
+    from django.urls import re_path as url
+
 from oauth2_provider.views import AuthorizationView
 
 from .views import ConvertTokenView, TokenView, RevokeTokenView, invalidate_sessions, DisconnectBackendView