maybe fix mypy

Author: sentrivana

sentry_sdk/integrations/threading.py

@@ -38,7 +38,7 @@ def setup_once() -> None:
 
         try:
             from django import VERSION as django_version  # noqa: N811
-            import channels  # type: ignore[import-not-found]
+            import channels  # type: ignore
 
             channels_version = channels.__version__
         except ImportError: