[Feature Request]: Using Managed Identity (RBAC) instead of basic key autentication for Connections

Is your feature request related to a problem? Please describe. Creating connections like AOAI, Cognitive AI Search using keys and unable to use Managed identity (RBAC).

Describe the solution you'd like If we can create the connection like AOAI, Cogntivie AI Search i.e, Azure native resources to use managed identity instead of basic key will improve the security wise and encourage us to do restrict the automation / infra configurations