When DVT fails to start a translation run in validation_dag, the ex-dvt[] dynamic task is marked as failed, but the rest of the steps succeed, leading to the DAG to succeed overall. No log is written to the BQ validation results tables either since DVT failed before it could run anything. This means a user would not notice the failure unless they look

To reproduce: provide an invalid DVT config such as an incorrect source DB IP.

Find a better way to surface this to the user, likely either in the Airflow UI or DMT BQ logs.