This commit updates the moinbot config to also add a `!zahl` request,
thus enabling monitoring: If no reply is sent by the bot, they are down.
`niveum.passport.services.description` is also corrected and `moin: gib`
removed.
feat(zaatar): convert to flake
feat(tahina, tabula): convert to flake
feat(makanek): convert to flake
feat(manakish, zaatar): convert to flake
feat(ci): build flake systems
fix: ci build
feat: secrets via submodule
foo
foo
foo
