⚡ Automatically add trailing slash to webhook urls (#2076)

* Add trailing slash to webhook url if not present

Relates to community post https://community.n8n.io/t/problem-with-google-calendar-credentials/7232

We'll be adding a trailing slash as it's a requisite.

* Adding slash to all cases.

packages/cli/src/WebhookHelpers.ts

@@ -463,6 +463,9 @@ export function getWebhookBaseUrl() {
 		// @ts-ignore
 		urlBaseWebhook = process.env.WEBHOOK_TUNNEL_URL || process.env.WEBHOOK_URL;
 	}
+	if (!urlBaseWebhook.endsWith('/')) {
+		urlBaseWebhook += '/';
+	}
 
 	return urlBaseWebhook;
 }