[Feature][Dashboard] Support installing agents by SSH key-based authentication

[dockerzhang]

Description

refer to https://github.com/apache/inlong/issues/10261 , the manager has completed, we should add this feature in dashboard too.

other info: https://github.com/apache/inlong/pull/10244

Use case

No response

Are you willing to submit PR?

• [ ] Yes, I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct