Unfortunately, triggering on updated contacts in Wealthbox CRM is not supported at the moment. However, we have an feature request for this exact functionality. I have added you to the feature request. That does a few things:
Bring this to the attention of the integration developers
Help track interest in this feature being implemented
Allows us to notify you via email if this feature becomes available in the future
While I don't have an ETA on when this feature might be implemented, we will notify you via email if it is!