DEV: Skip babel for ace-builds and json-editor (#28659)

This will avoid warnings: "The code generator has deoptimised the styling of {path} as it exceeds the max of 500KB."

Should also provide a tiny improvement in build times

app/assets/javascripts/discourse/ember-cli-build.js

@@ -233,6 +233,12 @@ module.exports = function (defaults) {
       {
         package: "sinon",
       },
+      {
+        package: "@json-editor/json-editor",
+      },
+      {
+        package: "ace-builds",
+      },
     ],
   });