Blueprint package set is now depsolved together with the OS package set
in a chain. The result is stored in the package specs sets under the OS
package set name.
In reality, the code was able to handle a `nil` package specs to be
passed to pipelines, however some parts were looking for the kernel
version in the blueprint package specs, which would be a bug.
Regenerated affected image test cases.
We should honour `pkg.CheckGPG` when creating the file inputs for the
rpm stage. This was lost in the transition from v1 to v2 manifests.
Regenerate image test manifests.
Co-authored-by: Tomas Hozza <thozza@redhat.com>
Signed-off-by: Tomas Hozza <thozza@redhat.com>
