In the Debian bookworm-backports repository, the Suite has changed to
"stable-backports". The Codename is the more specific "bookworm-backports".
Tests:
- Build a freedombox package for bookworm-backports with a smaller version
number than the package in bookworm-backports. Install it in bookworm vagrant
box.
- Run a manual update. freedombox is upgraded to the version in
bookworm-backports.
Closes: #2368.
Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>