build(deps): bump channels from 2.4.0 to 3.0.0 (#309)

* build(deps): bump channels from 2.4.0 to 3.0.0

Bumps [channels](https://github.com/django/channels) from 2.4.0 to 3.0.0.
- [Release notes](https://github.com/django/channels/releases)
- [Changelog](https://github.com/django/channels/blob/master/CHANGELOG.txt)
- [Commits](https://github.com/django/channels/compare/2.4.0...3.0.0)

Signed-off-by: dependabot[bot] <support@github.com>

* root: update for channels 3

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jens Langhammer <jens.langhammer@beryju.org>

passbook/root/routing.py

@@ -7,6 +7,8 @@ from passbook.outposts.channels import OutpostConsumer
 application = ProtocolTypeRouter(
     {
         # (http->django views is added by default)
-        "websocket": URLRouter([path("ws/outpost/<uuid:pk>/", OutpostConsumer)]),
+        "websocket": URLRouter(
+            [path("ws/outpost/<uuid:pk>/", OutpostConsumer.as_asgi())]
+        ),
     }
 )