Task: Receive updates for GitLab events

n8n workflow:
{"nodes":[{"name":"Gitlab Trigger","type":"n8n-nodes-base.gitlabTrigger","position":[460,480],"webhookId":"0e855b27-6465-42be-9610-c61b2e09cef9","parameters":{"owner":"n8n-io","events":["*"],"repository":"n8n-docs"},"credentials":{"gitlabApi":"gitlab_creds"},"typeVersion":1}],"connections":{}}