The package is still using dh12, it could be updated to a newer version. Let me know if you would welcome a patch to switch to the current version
Compat level 12 is recommended for packages maintained in the Debian GIS team: https://debian-gis-team.pages.debian.net/policy/policy.html#debhelper We don't track the latest to ease backports for UbuntuGIS and OSGeoLive. See: https://lists.debian.org/debian-gis/2021/09/msg00009.html Kind Regards, Bas