Bug: dispatch_workflows no longer work after upgrading from 0.81.6 to 0.83.1

[jitran]

After upgrading to the latest AW version, the dispatch workflow fails with the following in the agent job:

Line 7: type 'dispatch_workflow'
Warning: Validation errors found:
Warning:   - Line 7: dispatch_workflow requires a 'workflow_name' field (string)

This declaration was working for a couple of months:

  dispatch-workflow: [workflow-handler]

attempted with explicit declaration also fails:

  dispatch-workflow:
    workflows: [workflow-handler]

Could you please fix this?
Thanks

[pelikhan]

@jitran please use https://github.com/github/gh-aw/blob/main/debug.md with your agent to generate a detailled issue report.

@copilot add regression integration workflow test to validate this scenario.