Description of problem:
in situation when the cluster is on a channel with no upgrade path,
running 'oc adm upgrade --to-image' should result in a message:
'you must pass --allow-explicit-upgrade to continue'
however in latest 4.10 oc versions, the error received is different, and incorrect:
'error: no recommended updates, specify --to-image or wait for new updates to be available'
while in reality we already specified --to-image

Version-Release number of selected component (if applicable):
Client Version: 4.10.0-0.nightly-2022-01-25-023600

How reproducible:
100%

Steps to Reproduce:
install a cluster which is the latest version for its channel
use the latest oc tools
run oc adm upgrade --to-image <some image digest not in the upgrade graph>

Actual results:
#oc adm upgrade --to-image registry.ci.openshift.org/ocp/release@sha256:87c1f0019d44107031c662a3c387bba46d1f2710909b583e5f4c0ad61cdba36e
error: no recommended updates, specify --to-image or wait for new updates to be available

Expected results:
#oc adm upgrade --to-image registry.ci.openshift.org/ocp/release@sha256:87c1f0019d44107031c662a3c387bba46d1f2710909b583e5f4c0ad61cdba36e
error: The requested upgrade image is not one of the available updates, you must pass --allow-explicit-upgrade to continue