Merge pull request #108005 from microsoft/rebornix/addnotebookworkerweb

Bump distro, add notebook worker to web build

package.json

 {
   "name": "code-oss-dev",
   "version": "1.50.0",
-  "distro": "66a02247b2916cb7cf8a3b70677e1d798c6527f2",
+  "distro": "9c21f6fe853c7843005a92bd4f6dea9b8eba03a2",
   "author": {
     "name": "Microsoft Corporation"
   },