FormApprovalWebhookEvent:
    | "FORM_SUBMISSION_CREATED"
    | "CLARIFICATION_SUBMISSION_CREATED"
    | "STEP_CREATED"
    | "STEP_APPROVED"
    | "STEP_CLOSED"
    | "STEP_CLARIFICATION_REQUIRED"
    | "APPROVAL_APPROVED"
    | "APPROVAL_REOPENED"
    | "NOTE_CREATED"
    | "NOTE_UPDATED"
    | "NOTE_DELETED"