Revert "chore: remove workspace from package.json since we have `pnpm-works…" (#38376)

Revert "chore: remove workspace from `package.json` since we have `pnpm-works… (#38166)"

This reverts commit a37abc6.

Author: styfle

package.json

@@ -2,6 +2,9 @@
   "name": "nextjs-project",
   "version": "0.0.0",
   "private": true,
+  "workspaces": [
+    "packages/*"
+  ],
   "scripts": {
     "new-error": "plop error",
     "new-test": "plop test",