Remote SSH in agents window doesn't seem to be working

Testing https://github.com/microsoft/vscode/issues/329737

I have a simple container running locally that exposes SSH on 2222. It uses user password authentication. I'm able to connect to it in an editor window. When I try to select it as a workspace in a new session in agents window, it fails, saying all authentication methods failed.

Start by reading microsoft/vscode#329737 and reproducing the reported setup: a local container exposing SSH on port 2222 with password authentication. Compare connecting in an editor window with selecting the same workspace in a new Agents window; done means the Agents window connects successfully or the authentication failure is explained with a confirmed scope for the fix.

Written by the indexing model from the issue text.