Task: Receive updates for GitHub events

n8n workflow JSON:
{"nodes":[{"name":"Github Trigger","type":"n8n-nodes-base.githubTrigger","position":[260,410],"webhookId":"887a6b2b-dfc3-48b5-86e3-fc414613baee","parameters":{"owner":"n8n-io","events":["*"],"repository":"n8n-docs"},"credentials":{"githubApi":"github_creds"},"typeVersion":1}],"connections":{}}