Rule 8 asked a key for every `requires`, and the plans key only a handed module's needs and what a helper answers:
grafana waited on ace for oidc-client, which the controller still makes, and mesh-build-go for go-toolchain on its own
machine, for ever. MissingProvisions now takes catalogue.Awaited, the one rule the plan composition and mesh-provisioner
key by, judged against the providers placed somewhere.
Quick fix: drop the missing-key check. Thorough fix (chosen): the shared rule in mesh-sdk, so the three parts cannot
drift again. Needs mesh-sdk at 30098229b831.