Update vscode/extension/tests/external_models.spec.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: benfdking

vscode/extension/tests/external_models.spec.ts

@@ -24,7 +24,7 @@ test.describe('External model files trigger lsp', () => {
     // Wait for the models folder to be visible
     await page.waitForSelector('text=models')
 
-    // Click on the models folder, excluding external_models
+    // Click on the external_models file (e.g., external_models.yaml or external_models.yml)
     await page
       .getByRole('treeitem', { name: file, exact: true })
       .locator('a')