Bug#1099535: missing build dependency on apt

[Jochen Sprickerhof <jspricke@debian.org>]

Source: debian-installer-netboot-images
Version: 20241227+rebuild1
Severity: normal

Hi,

debian-installer-netboot-images uses apt-config during the build (in
get-mirror.sh) which is not essential. Please add a build dependency on
apt.

Cheers Jochen