Some dependency changed in testing and it's not pulled in anymore:
‣ Running build script /home/runner/work/systemd/systemd/mkosi/mkosi.images/build/mkosi.conf.d/debian-ubuntu/mkosi.build.chroot…
/work/build-script: line 35: mount: command not found
‣ /work/build-script failed with non-zero exit code 127
‣ (Maybe a program was not found or the script interpreter (e.g. bash) is not installed?)
FAILED: [code=127] mkosi
(cherry picked from commit
e27f740ba8c19db51de4a314d4afda4051631fde)
(cherry picked from commit
c199f81d277ac782c421a2cd9d4aecbebf4a61fa)
(cherry picked from commit
939bad3bca786890981dec13c938c7d11904c79f)
git-core
?exact-name(libclang-rt-dev)
dpkg-dev
+ mount