Because some snaps are not yet in their respective stable channel in 26.04, the
build fails. When preparing the image we can add --snap options to override the
channel of the different snaps. But we can only do that if we're building with
grade: dangerous. As a workaround this issue, we build with the non-dangerous
ISO with the dangerous model, but keep the snaps on their original channel
defined in the non dangerous model.
Signed-off-by: Olivier Gayot <olivier.gayot@canonical.com>
9164e58d83