--output not work for dispatch run

[pzmrzy]

Bug Report

When do dispatch run, if add --output yaml, it still return json format.

Expected behavior

The result show in yaml format.

Current behavior

The result show in json format.

Steps to reproduce

1. Follow the quickstart guild
2. run dispatch exec hello-py --input '{"name": "Jon", "place": "Winterfell"}' --wait --output yaml

Impact

• Low - Annoyance, but does not impact business or functionality
• Medium - Issue can be worked around, but is causing pain
• High - Blocker