Run Autosubst 2 without installation

This repository allows running Autosubst 2 without installing it.

1. Fork this repository and then clone your own version.
2. Add as many .sig files as needed to the top-level directory, push them to any branch.
3. Go to the Actions tab on GitHub. Wait for the CI run to finish and then click on the run. The artifact file that can be downloaded at the bottom contains the Autosubst output in both scoped and unscoped format.