machine-config-nodes-crd-cleanup pod in pending state during upgrade from 4.18 to 4.19 in RHOCP4

Issue

• RHOCP upgrade to 4.19 is stuck due to machine-config-nodes-crd-cleanup pod in openshift-machine-config-operator namespace stuck in pending state:

  $ oc get clusterversion -o yaml 
  [...]
  - lastTransitionTime: "2025-09-29T09:30:03Z"
    message: 'Could not update customresourcedefinition "machineconfignodes.machineconfiguration.openshift.io"
      (785 of 924): the object is invalid, possibly due to local cluster configuration'
    reason: UpdatePayloadResourceInvalid
    status: "True"
  [...]