assistant2: Wire up `assistant2::NewThread` action (#21187)

This PR wires up the `assistant2::NewThread` action so that you can
create new threads.

Release Notes:

- N/A

Marshall Bowers committed 1y ago

321fd19763da4526845e47e58ba4e7e706787134

Parent: cc5daa2

Committed by GitHub <noreply@github.com> on 11/25/2024, 10:24:25 PM