The cross-arch QEMU test in GitHub Actions was inadvertently installing osbuild from Fedora's official repositories instead of using the pinned commit specified in `Schutzfile`. This caused test failures when the Fedora-packaged version lagged behind requirements. Additionally, the `cmd/build` command now explicitly checks the minimum osbuild version before performing any operations, ensuring both depsolve and build phases use a compatible osbuild version.

/jira-epic HMS-8910