feat: be able to rollback a patch from the command line

[eseidel]

A customer asked to be able to control rollbacks from the command line.

For now I've directed them to our API:
https://github.com/shorebirdtech/shorebird/tree/main/packages/shorebird_code_push_client

[eseidel]

Their use case is that they would like to be able to handle rollbacks from within their existing CI interfaces separate from Shorebird's dashboard.

[bryanoltman]

I don't believe there's anything in the code push client that supports rollbacks—we've done all of this on the console

[bryanoltman]

I'd want to think more about what this would look like. The rollback url is api.shorebird.dev/api/v1/apps/[appId]/releases/[releaseId]/patches/[patchId]/rollback.dart, where neither releaseId or patchId are made especially visible to our users. I suppose something like:

shorebird patches rollback --app-id=xxx --release-version=1.2.3+4 --patch-number=42

Might work?