chore: allow generating tests for script (#331)

utils/update-readme.js

@@ -32,6 +32,7 @@ import pdfTools from '../lib/tools/pdf.js';
 import snapshotTools from '../lib/tools/snapshot.js';
 import tabsTools from '../lib/tools/tabs.js';
 import screenTools from '../lib/tools/screen.js';
+import testTools from '../lib/tools/testing.js';
 
 // Category definitions for tools
 const categories = {
@@ -62,6 +63,9 @@ const categories = {
     ...installTools,
     ...dialogsTools(true),
   ],
+  'Testing': [
+    ...testTools,
+  ],
 };
 
 // NOTE: Can be removed when we drop Node.js 18 support and changed to import.meta.filename.