trivial: Ensure the parent dir exists before saving the verify silo
trivial: Ensure the parent dir exists before saving the verify silo

fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,fwupd/fwupd,hughsie/fwupd