Build everything as part of CI, not just iree/
Build everything as part of CI, not just iree/

Everything now builds, so let's start enforcing it.

This will be... not fast (for now)

PiperOrigin-RevId: 279427945

google/iree,iree-org/iree,google/iree,google/iree,iree-org/iree,google/iree,iree-org/iree,iree-org/iree,iree-org/iree,google/iree,google/iree,iree-org/iree,google/iree,iree-org/iree