Update django_runserver.py

stream attribute of LimitedStream removed from core.wsgi in Django 4

Author: Ian-Gabaraev

ws4redis/django_runserver.py

@@ -98,7 +98,7 @@ def upgrade_websocket(self, environ, start_response):
         logger.debug('WebSocket request accepted, switching protocols')
         start_response(force_str('101 Switching Protocols'), headers)
         six.get_method_self(start_response).finish_content()
-        if (django.VERSION[:3] >= (2,1,5)):
+        if (2, 1, 5) <= django.VERSION[:3] < (4, 2, 0):
             wsgi_input = environ['wsgi.input'].stream
         else:
             wsgi_input = environ['wsgi.input']