Add sdn-type in microsoft.redhatopenshift templates

**Describe the solution you'd like**

With the new ARO version 4.11 is it possible to select a sdn-type. When is the plan to add this new option to the bicep template?

https://learn.microsoft.com/en-us/azure/openshift/azure-redhat-openshift-release-notes
https://learn.microsoft.com/en-us/azure/openshift/howto-configure-ovn-kubernetes

Start by locating the microsoft.redhatopenshift templates in the bicep type definitions and read the linked ARO 4.11 release notes and OVN-Kubernetes configuration documentation. Done means the new sdn-type option is represented in the relevant template definitions.

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