debian-installer netboot builds.
These are reset every time a new debian-installer is uploaded and not on a daily basis.

Changes: https://launchpad.net/ubuntu/+archive/primary/+files/debian-installer_20...

debian-installer (20101020ubuntu614.6) focal; urgency=medium

   * Fix debian-installer to pull gcdx64.efi.signed from the
     grub-efi-amd64-signed binary package (already installed as a transitive
     build-dependency) instead of from the archive mirror, where it is no
     longer published.  LP: #2009078.

 -- Steve Langasek   Tue, 14 Mar 2023 12:50:04 -0700