fix

Author: Nebucatnetzer

tooling/bin/build-image.sh

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 echo "$GITHUB_TOKEN" | skopeo login ghcr.io --username "$GITHUB_USERNAME" --password-stdin
 result=$(nix build .#snapbin-image --no-link --print-out-paths)
-skopeo copy --insecure-policy docker-archive://"$result" docker://"ghcr.io/$GITHUB_REPOSITORY/snapbin:latest"
+skopeo copy --insecure-policy docker-archive://"$result" docker://"ghcr.io/${GITHUB_REPOSITORY,,}/snapbin:latest"