Starting with Bookworm, Debian moved the non-free Linux firmware blobs
into a new non-free-firmware component, since they are frequently needed
by users and since they need to be updated frequently. Since the only
thing we currently install from the non-free component (that I can think
of) is the Linux firmware, have Bookworm use non-free-firmware instead
of non-free.
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
Why I did it
Unify the Debian mirror sources
Make easy to upgrade to the next Debian release, not source url code change required.
Support to customize the Debian mirror sources during the build
Relative issue: #12523
