extractor: Don't restore user, group, SUID, SGID, nor sticky bit
Restoring user, group, and unix mode might be problematic in terms of
security. The libarchive's archive_write_disk
API doesn't restore user,
group, SUID, SGID, nor sticky bit by default for this reason. It also
honors umask settings. Let's do the same here. If somebody needs that
functionality in gnome-autoar, an extra flag needs to be added.
Related: https://bugzilla.redhat.com/show_bug.cgi?id=2231176