debugger: Fix errors in JavaScript DAP schema (#33884)

`program` isn't required, and in fact our built-in `JavaScript debug
terminal` configuration doesn't have it.

Also add `node-terminal` to the list of allowed types.

Co-authored-by: Michael <michael@zed.dev>

Release Notes:

- N/A
543a7b123aCole Miller committed on 7/4/2025, 5:33:10 PM· committed by GitHubparent8fecacf
1 file changedLine totals unavailable