Fix GHC 9.0 Nix config for fourmolu plugin

Author: Ailrun

configuration-ghc-901.nix

@@ -6,27 +6,19 @@ let
     "hls-tactics-plugin"
     "hls-brittany-plugin"
     "hls-stylish-haskell-plugin"
-    "hls-fourmolu-plugin"
   ];
 
   hpkgsOverride = hself: hsuper:
     with pkgs.haskell.lib;
     {
-
-      # Released on hackage, but not in nixpkgs yet
-      primitive-extras = hself.callCabal2nix "primitive-extras" (pkgs.fetchFromGitHub {
-        owner = "metrix-ai";
-        repo = "primitive-extras";
-        rev = "c758d7366b99d85889cb13425fc0140879f8b936";
-        sha256 = "sha256-vTT7svbM7IkhyxYx2xQ8p1ptoYe+ndcMN5+j9qx++7E=";
-      }) { };
+      fourmolu = hself.fourmolu_0_4_0_0;
+      primitive-extras = hself.primitive-extras_0_10_1_2;
 
       # Re-generate HLS drv excluding some plugins
       haskell-language-server =
         hself.callCabal2nixWithOptions "haskell-language-server" ./.
         (pkgs.lib.concatStringsSep " " [
           "-f-brittany"
-          "-f-fourmolu"
           "-f-stylishhaskell"
           "-f-tactic"
         ]) { };