Improve release publishing workflow

Currently we manually create releases and any package that is not marked `-dev` in its `VERSION` file gets published

This creates a lot of unwanted commits, and boilerplate tasks that are pretty annoying and potentially unnecessary.

One possible solution is to make it such that:

- When a PR lands on `main` if the `-dev` version has changed for one or more packages...
- CI creates a branch for a new release, updates the `VERSION` files and publishes the packages to the version indicated by the previous dev version/s