Fix experimental react support in app-route runtime (#61511)
Follow up for #61463
Basically the fix in #61463 was not correct. I added a log to see which
react is resolved in `dynmiac-rendering` module, and the got this:
The module with incorrect react version is from
`next.js/packages/next/dist/compiled/next-server/app-route.runtime.prod.js`
which resolves `react` as `./dist/compiled/react/index.js` even
experimental react should pop in here.
Then I found the app-route runtime doesn't have check for the react exp
env, then I added there to make it aligned with app-page runtime
Closes NEXT-2327
Closes NEXT-2294
