public Status withFirmwareVerifiedAt(Instant instant) {
        return new Status(reboot, vespaVersion, containerImage, failCount, wantToRetire, wantToDeprovision, wantToRebuild, bootingAfterRebuild, preferToRetire, wantToFail, wantToUpgradeFlavor, osVersion, Optional.of(instant), snapshot);
    }
Returns a copy of this with the firmwareVerifiedAt set to the given instant.
node-repository/src/main/java/com/yahoo/vespa/hosted/provision/node/Status.java