Bump Xcode to 16.4 and stop downloading Apple SDKs (#55147)

Summary:
When setting up Xcode, we also download the SDKs that is needed.
There might be cases where we can save money and time and skip the download

## Changelog:
[Internal] -

Pull Request resolved: https://github.com/facebook/react-native/pull/55147

Test Plan: GHA

Reviewed By: javache

Differential Revision: D90594740

Pulled By: cipolleschi

fbshipit-source-id: 2923d891d626dfbb8446641d37b4b3f896c1daf2