refactor: Overhaul nodes-testing setup - Part 3 (no-changelog) (#14967)

packages/nodes-base/nodes/HttpRequest/test/encoding/HttpRequest.test.ts

@@ -1,7 +1,6 @@
+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
 import nock from 'nock';
 
-import { getWorkflowFilenames, testWorkflows } from '@test/nodes/Helpers';
-
 describe('Test Response Encoding', () => {
 	const baseUrl = 'https://dummy.domain';
 	const payload = Buffer.from(
@@ -16,6 +15,5 @@ describe('Test Response Encoding', () => {
 			.reply(200, payload, { 'content-type': 'text/plain; charset=latin1' });
 	});
 
-	const workflows = getWorkflowFilenames(__dirname);
-	testWorkflows(workflows);
+	new NodeTestHarness().setupTests();
 });