[25.05] github-runner: fix the nodeRuntimes option (nix-darwin#1583)

Author: Enzime

modules/services/github-runner/service.nix

@@ -76,7 +76,7 @@ in
 
   config.launchd.daemons = flip mapAttrs' config.services.github-runners (name: cfg:
     let
-      package = cfg.package.override (old: optionalAttrs (hasAttr "nodeRuntimes" old) { inherit (cfg) nodeRuntimes; });
+      package = cfg.package.override { inherit (cfg) nodeRuntimes; };
       stateDir = mkStateDir cfg;
       logDir = mkLogDir cfg;
       workDir = mkWorkDir cfg;

tests/services-github-runners.nix

@@ -4,9 +4,6 @@
     enable = true;
     url = "https://github.com/nixos/nixpkgs";
     tokenFile = "/secret/path/to/a/github/token";
-    # We need an overridable derivation but cannot use the actual github-runner package
-    # since it still relies on Node.js 16 which is marked as insecure.
-    package = pkgs.hello;
   };
 
   test = ''