Prepare the script to run tests on Android emulator (#4387)

Summary:
Unlike other Linux job where we can use Docker images,  Android emulator needs to be run directly on our Linux runner as I don't know if Docker supports KVM which is needed to emulate the devices.

* Requires Amazon Linux 2023 or GitHub ubuntu for node 20
* Use https://github.com/ReactiveCircus/android-emulator-runner GHA to simplify the setup of the emulator devices instead of writing our own script
* It takes about 10m to cold boot the emulator

Pull Request resolved: https://github.com/pytorch/executorch/pull/4387

Reviewed By: guangy10, kirklandsign

Differential Revision: D60165361

Pulled By: huydhn

fbshipit-source-id: c66c3be9a5c90ea72ba8c295d2b088168b30c115