fix(client): get jquery from cdn (#44421)

* fix: ensures jquery exists for those challenges

For tests frame-runner.js imports jquery, but jquery challenges always
need it

* Revert "Revert "fix: only include frame-runner when running tests (#44337)" (#44419)"

This reverts commit c19bf504b8.

curriculum/challenges/_meta/jquery/meta.json

@@ -8,6 +8,9 @@
   "required": [
     {
       "link": "https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.css"
+    },
+    {
+      "src": "https://code.jquery.com/jquery-3.6.0.min.js"
     }
   ],
   "superBlock": "front-end-development-libraries",