1.0.1

Fixes two bugs:

1. When using git, system rebuild fails if there are no staged changes
2. When using git, running system rebuild amend twice or more in a row fails on every attempt after the first

To stay on this release, specify the tag in your inputs:

inputs.system-scripts.url = "github:tom-ricci/system-scripts?ref=refs/tags/1.0.1"