This defines our Buildpack Builder - currently very much based on https://github.com/paketo-buildpacks/builder-jammy-full
builder.toml docs: https://buildpacks.io/docs/reference/config/builder-config/
On git tags, this pushes:
r.planetary-quantum.com/runway-public/runway-buildpack-stack:jammy-fullr.planetary-quantum.com/runway-public/runway-buildpack-stack:jammy-full-vX.X.X- and the run-image
r.planetary-quantum.com/runway-public/runway-runimagewith the same tags