[Feature Request] Failures thrown from within the update handler should be able to fail the workflow

[ThomasBurgess2000]

Is your feature request related to a problem? Please describe.

Currently it's a bit clumsy to fail a workflow from within an update. You have to set a flag in your updateMethod, and then in the workflow code watch for that flag and throw the failure from there (according to this post re: the java sdk at least).

Describe the solution you'd like

throw ApplicationFailure should return (or at least have the option to return) WorkflowFailedError instead of WorkflowUpdateFailedError.

Additional context

There is a similar issue active in the Java SDK repo: temporalio/sdk-java#87