Needed to run on a Raspberry Pi.
Arm/v6 would also be nice, but this does not seem to be supported by the current base image gcr.io/distroless/static:nonroot. So let's go with this for now.
Contrary to what internet resources say, ${{github.event.ref}} also contains the `ref/tags/` prefix. That is removed now.
Also, setting the version with plain "-X version.Version" does not seem to work consistently. Adding the full package as a prefix fixes this.