Update flake to bump Node

18 no longer works (a dependency errors with a version constraint).
This installs 22 rather than 20, so still not exactly right but at least
it runs now.

Author: code-asher

flake.lock

@@ -7,7 +7,7 @@
     flake-utils.lib.eachDefaultSystem
       (system:
         let pkgs = nixpkgs.legacyPackages.${system};
-            nodejs = pkgs.nodejs-18_x;
+            nodejs = pkgs.nodejs;
             yarn' = pkgs.yarn.override { inherit nodejs; };
         in {
           devShells.default = pkgs.mkShell {