Notes for command-not-found - reproducible builds result

Version annotated: 23.04.0-2
Bugs noted: 1104512+: "command-not-found: FTBFS in super clean chroots (misses apt)"
1104517+: "command-not-found: avoid relying on /etc/apt/sources.list in tests"
 

Our notes about issues affecting packages are stored in notes.git and are targeted at packages in Debian in 'unstable/amd64' (unless they say otherwise).