Update - Creating Agentic AI to deploy ARO cluster using Terraform with Red Hat OpenShift AI on ROSA and Amazon Bedrock

[kumuduh]

https://cloud.redhat.com/experts/rhoai/rosa-agentic

test on 4.20 + and add an information banner saying "This guide has been validated on OpenShift 4.20. Operator CRD names, API versions, and console paths may differ on other versions." as this doc has https://cloud.redhat.com/experts/rosa/eso/