CircleCI workflow

we want to write a CircleCI config file that:
* runs the tests
* verifies the app can boot
* verifies the app can build
* runs linters
* ... what else might be necessary for a Rust app?

## Bonus

* releases new version if merged to production branch
* issues an update to existing/installed app (https://tauri.studio/v1/guides/distribution/updater/) 