It's logical to make sure that either

• the cluster used for testing a chart with chart-verifier is not an OpenShift EOL cluster, or
• the cluster used for testing a chart with chart-verifier fits within the kubeVersion range.

The former makes more sense, but may be a bit complicated to implement. We may be able to add and manage this information in a library https://github.com/opdev/getocprange, or otherwise need to talk to Pyxis to get this information (which adds a network call).