Failed to download musl from unofficial

[max0x53]

nodeenv was causing issues in our CI, for 1:30 hours yesterday as it was unable to download node.

 * Install prebuilt node (22.5.1) .Failed to download from https://unofficial-builds.nodejs.org/download/release/v22.5.1/node-v22.5.1-linux-x64-musl.tar.gz

This was caused by nodeenv expecting that a version which exists in index.json, will have musl build artifacts available for download.