Description of problem: Unable to pull gpu-operator-certified from registry.redhat.io/redhat/certified-operator-index

Version-Release number of selected component (if applicable):
gpu-operator-certified:v4.9
gpu-operator-certified:v4.10
oc-mirror version
Client Version: version.Info

{Major:"0", Minor:"1", GitVersion:"v0.1.0", GitCommit:"3fd4fe554639c8851124d4df9c85a9dba9b3d71c", GitTreeState:"clean", BuildDate:"2022-04-09T11:02:59Z", GoVersion:"go1.17.5", Compiler:"gc", Platform:"linux/amd64"}

How reproducible:
Always

Steps to Reproduce:
1. Get the latest oc-mirror
2. Create gpu.yml with the following:
apiVersion: mirror.openshift.io/v1alpha1
kind: ImageSetConfiguration
mirror:
operators:

• catalog: registry.redhat.io/redhat/certified-operator-index:v4.10
  headsonly: false
  packages:
• name: gpu-operator-certified

3.run oc-mirror --config gpu.yaml file://gpu-test

Actual results:
error: unable to retrieve source image nvcr.io/nvidia/driver manifest sha256:d46393d6bd5be020c78e1d45669d2bb3ac8681df13369ddbbbf90740e354c0cf: manifest unknown: manifest unknown
error mirroring image: an error occurred during planning
error: image "registry.connect.redhat.com/nvidia/gpu-operator-bundle@sha256:4d1268054559b7678028a7a66e36567c55417b729101ef131dec8d989cbef1d3" is invalid or does not exist

Expected results:
generates functional mirror_seq1_000000.tar in specified directory "gpu-test"

Additional info: