Action Required: Cosign has been updated

[castrojo]

FYI all, the cosign github action has been updated and it probably broke your build, check out this action's updates with the fixes (and a pinned version so this doesn't happen again, sorry, oversight on my part a while back): https://github.com/ublue-os/main/blob/main/.github/workflows/build.yml

Actions are down so we can't test on other images but hopefully this will clear up soon.