fix: add test

Should resolve issue on github action.

Author: aalemayhu

src/default-templates.test.ts

@@ -0,0 +1,8 @@
+// eslint-disable-next-line import/no-extraneous-dependencies
+import { test, expect } from 'vitest';
+
+import TEMPLATE_DIR from './default-templates';
+
+test('not empty template directory', () => {
+  expect(TEMPLATE_DIR).not.toEqual('');
+});