Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/45713
## Context
Running manual tests when preparing a release, it's time consuming.
We have to do the cherry picks, wait for CI to finish, and then manually test 8 configurations.
Maestro is a tool that allow us to run E2E tests automatically, and we can wire it to CI.
## Change
Add Maestro flow for a new app created from the template
Changelog:
[Internal] - Exploration to integrate maestro
Reviewed By: blakef
Differential Revision: D60282783
fbshipit-source-id: 0aa7f3fae4f5bf31518e02ddc56ca2d4fac4dfa3