Use golang's `test.timeout` to set the timeout instead of using
ansible's `async` property. The latter doesn't respect `register` when
running into a timeout, which means there are no logs in that case.
Attempt osbuild-composer testing on the internal Jenkins deployment with
nodes that are destroyed after each use. The internal Jenkins looks for
a Jenkinsfile inside the `schutzbot` directory.
Let's not remove the `jenkins` directory (used by jenkins.osbuild.org)
yet until we know the internal Jenkins is stable and performs well.
Signed-off-by: Major Hayden <major@redhat.com>