feat(editor): Add HTTP request nodes for credentials without a node (#7157)

Github issue / Community forum post (link here to close automatically):

---------

Co-authored-by: Giulio Andreini <g.andreini@gmail.com>
Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

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

@@ -16,6 +16,12 @@ export class ZscalerZiaApi implements ICredentialType {
 
 	icon = 'file:icons/Zscaler.svg';
 
+	httpRequestNode = {
+		name: 'Zscaler ZIA',
+		docsUrl: 'https://help.zscaler.com/zia/getting-started-zia-api',
+		apiBaseUrl: '',
+	};
+
 	properties: INodeProperties[] = [
 		{
 			displayName: 'Cookie',