fix: test

Author: totalimmersion

stream_chat/tests/test_channel.py

@@ -382,6 +382,8 @@ def test_pin_channel(
         self, client: StreamChat, channel: Channel, random_users: List[Dict]
     ):
         user_id = random_users[0]["id"]
+        channel.add_members([random_user["id"]])
+
         # Pin the channel
         response = channel.pin(user_id)
         assert response is not None