Task: Send an SMS when a workflow fails

n8n workflow:
{"id":"56","name":"Send an SMS when a workflow fails","nodes":[{"name":"Error Trigger","type":"n8n-nodes-base.errorTrigger","position":[550,260],"parameters":{},"typeVersion":1},{"name":"Twilio","type":"n8n-nodes-base.twilio","position":[750,260],"parameters":{"to":"","from":"","message":"=Your workflow with ID: {{$node[\"Error Trigger\"].json[\"workflow\"][\"id\"]}} and name: {{$node[\"Error Trigger\"].json[\"workflow\"][\"name\"]}} failed to execute."},"credentials":{"twilioApi":"twilio-credentials"},"typeVersion":1}],"active":false,"settings":{},"connections":{"Error Trigger":{"main":[[{"node":"Twilio","type":"main","index":0}]]}}}