Initial version of Infix spin example - #1

Failed to CreateArtifact: Artifact storage quota has been hit. Unable to upload any new artifacts. More info on storage limits: https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions#calculating-minute-and-storage-spending

The 'tool-cache' input is deprecated; it was renamed to 'preinstalled-runtimes'. It still works and will keep working until v3.0.0 — please rename it when convenient.