[PULSAR ADAPTER] Support for Authentication in Pulsar Adapter Configuration

[emiliocimino]

Hi everyone,

While attempting to set up a connection to a Pulsar instance secured with token-based authentication, I noticed that the current UI configuration for the adapter does not provide any option to specify authentication methods or tokens. I think it could be useful to have such features in production-ready environments where authentication is required. It would be valuable to support configuring authentication (e.g., token-based) directly from the UI.

Thank you for your work!