flake: remove uneeded directory for nodes

flake.nix

@@ -25,7 +25,7 @@
     formatter = eachSystem (pkgs: treefmtEval.${pkgs.system}.config.build.wrapper);
     nixosConfigurations = import ./hosts {inherit inputs;};
     packages = eachSystem (pkgs: import ./shared/pkgs {inherit inputs pkgs;});
-    deploy.nodes = import ./nodes {inherit inputs;};
+    deploy.nodes = import ./nodes.nix {inherit inputs;};
     checks = builtins.mapAttrs (_: deployLib: deployLib.deployChecks self.deploy) deploy-rs.lib;
   };
   inputs = {