This cache rule is meant for Avocado artifacts, but affects
all jobs. Moreover the 'acceptance_template' template already
include a more detailled rule to cache artifacts.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201108221925.2344515-2-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>