[ENG-3865] Run Android E2E tests on EAS Build

[dsokal]

Why

We've enabled nested virtualization for Android builds. Thanks to that, we can run Android emulator on EAS Build to run E2E tests.

How

1. Cleaned up code from https://github.com/expo/eas-tests-example/pull/2 - the PR hasn't been reviewed:
   • Remove unused/leftover code.
   • Don't call adapter.afterAll(); in afterAll hook in setup.js - https://github.com/expo/eas-tests-example/pull/3/files#diff-4d4a78dcedcf05fcf1221add78a46040125717a1b7aadf07f90669c026a8b487L12 I'm not sure why this was there. This doesn't seem to be necessary. Also, removing this line let me get rid of the patch-package module and the patch for tempfile. @douglowder
   • Simplify/clean up code for opening app with development client - https://github.com/expo/eas-tests-example/pull/3/files#diff-77e4c4f47296231cbd04163d5739819172bee3aecf946ffb3b093959876375ee Instead of depending on fragile const argparse = require('detox/src/utils/argparse');, use the DETOX_CONFIGURATION env var to detect the platform and target. Introduce EXPO_USE_UPDATES for selecting bundle source (this is much cleaner).
   • Remove e2e/testdeeplink.js as I feel this doesn't belong to this repo.
2. Configure EAS Build to run E2E tests for Android:
   • Install @config-plugins/detox + run prebuild to generate android/ (you can skip reviewing files in the directory as the files are auto-generated).
   • Add android.debug (I haven't been able to run tests with this config successfully; Detox is stuck at launching the app even though it is successfully launched in the emulator) and android.release configuration to .detoxrc.json.
   • Install emulator system deps in pre-install hook + the pixel_4 emulator.
   • Run the emulator and then run Android tests in on-success hook. Running the emulator before running Detox seems to be fixing the problem where Detox is unable to launch the app for the first time 🤷

Test plan

eas build -p all -e test and see the builds finish successfully.

Android: https://expo.dev/accounts/dsokal/projects/eas-tests-example/builds/5c179d94-ac93-47e7-8ab5-1778726a36ce

[linear[bot]]

ENG-3865 Testing on EAS Build documentation

**Goal** Document how to run tests on EAS Build, even though we haven't designed any affordances for this yet. If we encounter blockers to doing this, try to remove them. **Description** * Running unit tests (likely just recommend a build hook) * E2E testing (eg: detox and react-native-owl) using iOS simulators / Android emulators This task is pretty open ended. I think a good first step is to figure out how to get e2e tests (running inside of simulator/emulator) running at all on EAS Build.