Update iso/preseeds/preseed_unattended.cfg

Co-authored-by: Voss <[email protected]>

Author: 3alpha

iso/preseeds/preseed_unattended.cfg

@@ -62,7 +62,7 @@ d-i mirror/country string manual
 d-i mirror/http/hostname string deb.debian.org
 d-i mirror/http/directory string /debian
 d-i mirror/http/proxy string
-d-i apt-setup/local0/repository string http://deb.debian.org/debian/ bookworm main contrib non-free
+d-i apt-setup/local0/repository string http://deb.debian.org/debian/ bookworm main contrib non-free-firmware
 d-i apt-setup/cdrom/set-first boolean false
 d-i apt-setup/cdrom/set-next boolean false
 d-i apt-setup/cdrom/set-failed boolean false