Bump haskell.nix, remove now-unnecessary workarounds (#1553)

Author: amesgen

flake.lock

@@ -50,8 +50,7 @@ let
     };
   } // lib.optionalAttrs (buildSystem == "x86_64-linux") {
     windows = {
-      # https://github.com/input-output-hk/haskell.nix/issues/2361
-      haskell912 = mkHaskellJobsFor pkgs.hsPkgs.projectCross.ucrt64.projectVariants.ghc912;
+      haskell96 = mkHaskellJobsFor pkgs.hsPkgs.projectCross.ucrt64;
     };
   });
 

nix/ci.nix

@@ -18,10 +18,7 @@ hsPkgs.shellFor {
     pkgs.fourmolu
 
     # release management
-    (pkgs.scriv.overridePythonAttrs (_oldAttrs: {
-      # Already fixed upstream: https://github.com/NixOS/nixpkgs/pull/407167
-      doCheck = false;
-    }))
+    pkgs.scriv
     (pkgs.python3.withPackages (p: [ p.beautifulsoup4 p.html5lib p.matplotlib p.pandas ]))
   ];