Bump Android executor and add timeout (#48280)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48280

In an attempt to improve times and stability, I bumped the android machine to an ubuntu with 4 cores.

Sometimes the emulator can hang, so i set a timeout for the E2E tests executions of 1 hours to avoid wasting money in CI

## Changelog
[Internal] - Bump Android machine and add timeout

Reviewed By: fabriziocucci

Differential Revision: D67273842

fbshipit-source-id: b7212f52016f8ead1dbb2b4da03cb6f564222893