Support OAuth 2.0 SSO Authentication Without Client ID/Secret in Power BI Connector for Trino

[shohamyamin]

Currently, the Power BI connector for Trino supports OAuth 2.0 authentication, but it requires users to provide both the client ID and client secret for the connection. However, many environments that use SSO for OAuth 2.0 (such as enterprise setups) do not expose the client secret to end-users. Instead, users authenticate via a web-based SSO flow, as commonly seen with tools like DBeaver, which opens a browser window for authentication without needing a client ID/secret configuration.