refactor: Use NodeConnectionType consistently across the code base (no-changelog) (#10595)

packages/nodes-base/nodes/Postgres/PostgresTrigger.node.ts

@@ -5,6 +5,7 @@ import {
 	type INodeTypeDescription,
 	type ITriggerFunctions,
 	type ITriggerResponse,
+	NodeConnectionType,
 } from 'n8n-workflow';
 import {
 	pgTriggerFunction,
@@ -38,7 +39,7 @@ export class PostgresTrigger implements INodeType {
 				"Once you've finished building your workflow, <a data-key='activate'>activate</a> it to have it also listen continuously (you just won't see those executions here).",
 		},
 		inputs: [],
-		outputs: ['main'],
+		outputs: [NodeConnectionType.Main],
 		credentials: [
 			{
 				name: 'postgres',