this package seems to have new commits in its VCS but has
not yet updated debian/changelog. You should consider updating
the Debian changelog and uploading this new version into the archive.
Here are the relevant commit logs:
Author: Carsten Schoenert <email@example.com>
Date: Tue Jan 26 21:08:54 2021 +0100
d/gbp.conf: adjust to debian/sid