Use upstream flake-utils (#2037)

Author: hamishmack

flake.lock

@@ -11,7 +11,7 @@
     nixpkgs-2305 = { url = "github:NixOS/nixpkgs/nixpkgs-23.05-darwin"; };
     nixpkgs-unstable = { url = "github:NixOS/nixpkgs/nixpkgs-unstable"; };
     flake-compat = { url = "github:input-output-hk/flake-compat/hkm/gitlab-fix"; flake = false; };
-    flake-utils = { url = "github:hamishmack/flake-utils/hkm/nested-hydraJobs"; };
+    flake-utils = { url = "github:numtide/flake-utils"; };
     "hls-1.10" = { url = "github:haskell/haskell-language-server/1.10.0.0"; flake = false; };
     "hls-2.0" = { url = "github:haskell/haskell-language-server/2.0.0.1"; flake = false; };
     hydra.url = "hydra";

flake.nix

@@ -2,7 +2,7 @@
   # This is a template created by `hix init`
   inputs.haskellNix.url = "github:input-output-hk/haskell.nix";
   inputs.nixpkgs.follows = "haskellNix/nixpkgs-unstable";
-  inputs.flake-utils.follows = "haskellNix/flake-utils";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
   outputs = { self, nixpkgs, flake-utils, haskellNix }:
     let
       supportedSystems = [

hix/init/flake.nix

@@ -4,7 +4,7 @@
   description = "Default hix flake";
   inputs.haskellNix.url = "github:input-output-hk/haskell.nix";
   inputs.nixpkgs.follows = "haskellNix/nixpkgs-unstable";
-  inputs.flake-utils.follows = "haskellNix/flake-utils";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
   inputs.src.flake = false;
   outputs = { self, src, nixpkgs, flake-utils, haskellNix }:
     flake-utils.lib.eachSystem [ "EVAL_SYSTEM" ] (system: