Task: Send notification when deployment fails

n8n workflow:
{"nodes":[{"name":"Netlify Trigger","type":"n8n-nodes-base.netlifyTrigger","position":[450,300],"webhookId":"0654820c-1960-4c8b-80fc-c0a66ab96577","parameters":{"event":"deployFailed","siteId":"ab52947e-a696-4498-a5a1-fae7fbe30c84"},"credentials":{"netlifyApi":"Netlify account"},"typeVersion":1},{"name":"Slack","type":"n8n-nodes-base.slack","position":[650,300],"parameters":{"text":"=🚨 Deploy Failed 🚨\nDeploy for the site {{$json[\"name\"]}} failed.\nError Message: {{$json[\"error_message\"]}}\nYou can find more information here: https://app.netlify.com/sites/{{$json[\"name\"]}}/deploys/{{$json[\"id\"]}}","channel":"general","attachments":[],"otherOptions":{}},"credentials":{"slackApi":"read-history"},"typeVersion":1}],"connections":{"Netlify Trigger":{"main":[[{"node":"Slack","type":"main","index":0}]]}}}