fix: update stream_chat/tests/test_channel.py

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: totalimmersion

stream_chat/tests/test_channel.py

@@ -378,7 +378,9 @@ def test_export_channel(
                 break
             time.sleep(0.5)
 
-    def test_pin_channel(self, client: StreamChat, channel: Channel, random_users: List[Dict]):
+    def test_pin_channel(
+        self, client: StreamChat, channel: Channel, random_users: List[Dict]
+    ):
         user_id = random_users[0]["id"]
 
         # Pin the channel