The GitHub mirror for Guix (https://github.com/guix-mirror/guix) was shut down, but guix-install-action uses that mirror by default. Override the channels input to use %default-channels without modification, so that the upstream Guix repository is used directly.
The GitHub mirror for Guix (https://github.com/guix-mirror/guix) was shut down, but
guix-install-action
uses that mirror by default. Override thechannels
input to use%default-channels
without modification, so that the upstream Guix repository is used directly.