Fix ADE test based on new functionality

With the new support of Flatpak the scope of ADE has been reduced dropping app-bundle support. Adapt the tests to check that sysroot are working using dash as application to be build.

This requires of apertis-dev-tools!18 (merged)

https://phabricator.apertis.org/T8179

Signed-off-by: Walter Lozano walter.lozano@collabora.com