[WIP] Try running E2E tests on GitHub Actions

[ceyhun]

Try running E2E tests on GitHub Actions

To test:

PR submission checklist:

• [ ] I have considered adding unit tests where possible.
• [ ] I have considered if this change warrants user-facing release notes more info and have added them to RELEASE-NOTES.txt if necessary.

[peril-wordpress-mobile[bot]]

Wanna run full suite of Android and iOS UI tests? Click here and 'Approve' CI job!

[mokagio]

This sounds like an interesting experiment. However, we're investing in Buildkite as our unique CI stack and this PR is stale and adding noise to the queue. Closing.