Improve E2E Stability for Android (#48286)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48286

This change bumps the specs for the Android E2E tests. This has been reported to improve the stability of the tests.

We need to keep part of the `flatlist.yml` commented as it creates an issue with Maestro as it takes too much memory.

I'll reach out to the people working on Maestro to try and understand what's going on there.

## Changelog:
[Internal] - Improve android Stability and reenable E2E tests on main

Reviewed By: fabriziocucci

Differential Revision: D67276601

fbshipit-source-id: 7cca253547063a0ec39da7de58806286c6632b07