Migrate to Github Actions (#2025)

* [Chore] Migrate to github actions

- Migrates CI from CircleCI to Github Actions.
- Increases e2e benchmark timeouts as using bigger runners will take some effort.
- Puts the Android test behind a flag so that it's ignored if run in CI.

TODO:
- move e2e tests to a reusable workflow to avoid repetition
- figure out if we need our own codecov token

Author: carterqw2