Is your feature request related to a problem? Please describe.
OAuth2 Authentication and Authorization
Describe the solution you'd like
From documentation it seems that Polaris catalog also act as OAuth2 server, means OAuth2 based authentication and authorization is builtin the catalog itself. In normal deployment there may be already deployed IAM server. I like to know whether Polaris Catalog provides any integration with external IAM server like keycloak.
Describe alternatives you've considered
No response
Additional context
No response