Simple and opinionated action to install Lix. Strictly follows the default semantics of a Lix install.

It mostly just runs the Lix Installer¹.

Some differences:

• We use the channel: ref to Nixpkgs instead of the flake: ref, as the flake: ref may have issues within the GHA ecosystem, regarding rate-limiting.
• We configure the current user as a trusted user.

No options.

¹: And checks Nix is available, and also wraps with error reporting...