test against new cockpit/tasks container

test/check-application

@@ -2,6 +2,7 @@
 # Run this with --help to see available options for tracing and debugging
 # See https://github.com/cockpit-project/cockpit/blob/main/test/common/testlib.py
 # "class Browser" and "class MachineCase" for the available API.
+# boo
 
 import os
 import sys