chore(app): upgrade to `snack-runtime@0.2.0-alpha.4` for new socket infrastructure

[byCedric]

Summary

I'm Cedric and I work with Expo, we are migrating our infrastructure for Snack to move off from pubnub into another service. To be able to edit a Snack on the website, that previews in PlayTorch, you'll need to upgrade to the latest version.

Note that this version of the snack-runtime uses the same RN (0.69.9) and Expo (46) versions.

Changelog

[CATEGORY] [TYPE] - Upgrade Snack Runtime to 0.2.0-alpha.4 for new socket infrastructure.

Sorry, no idea what category or type could be 🙈

Test Plan

TBD, this would require testing the live preview of a Snack that's being edited on snack.expo.dev.

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

1 Ignored Deployment

| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **playtorch** | ⬜️ Ignored ([Inspect](https://vercel.com/fbopensource/playtorch/295APShuAg4aePSEykY59dqf5FPN)) | [Visit Preview](https://playtorch-git-fork-bycedric-upgrade-snack-runtime-fbopensource.vercel.app) | | Aug 23, 2023 3:09pm |

[facebook-github-bot]

@raedle has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[raedle]

Thanks for the PR, @byCedric! Very much appreciated!