test(IF Node): Unit tests (no-changelog) (#5404)

* ⚡️move test files

* ⚡️IF boolean tests

* ⚡️IF string tests

* ✅ IF number tests

* ✅ IF date-time tests

* 🎨 update Test name to make more sense

packages/nodes-base/nodes/If/test/If.node.test.ts

@@ -0,0 +1,5 @@
+import { testWorkflows, getWorkflowFilenames } from '../../../test/nodes/Helpers';
+
+const workflows = getWorkflowFilenames(__dirname);
+
+describe('Test IF Node', () => testWorkflows(workflows));