⚡ Simplify property types in credentials (#1869)

packages/nodes-base/credentials/PostHogApi.credentials.ts

@@ -1,22 +1,22 @@
 import {
 	ICredentialType,
-	NodePropertyTypes,
+	INodeProperties,
 } from 'n8n-workflow';
 
 export class PostHogApi implements ICredentialType {
 	name = 'postHogApi';
 	displayName = 'PostHog API';
-	properties = [
+	properties: INodeProperties[] = [
 		{
 			displayName: 'URL',
 			name: 'url',
-			type: 'string' as NodePropertyTypes,
+			type: 'string',
 			default: 'https://app.posthog.com',
 		},
 		{
 			displayName: 'API Key',
 			name: 'apiKey',
-			type: 'string' as NodePropertyTypes,
+			type: 'string',
 			default: '',
 		},
 	];