Build-Depends already includes dotnet-sdk-10.0, imagemagick,
librsvg2-bin, git, ca-certificates. The debhelper-compat (= 13)
line was duplicated: the same version is set in debian/compat
(debhelper reads it from there by convention). dh errors out
with:
dh: error: debhelper compat level specified both in
debian/compat and in debian/control
Drop the line in control.
