When iso subcommand, alma-sbom does not stop with Ctrl-C

[KAWAHARA-souta]

When in package, build subcommand, alma-sbom stop with Ctrl-C (stack trace with KeyboardInterrupt)
But when in iso subcommand, alma-sbom does not stop with Ctrl-C

Since iso subcommand takes a long time to execute, this is a significant problem for users.