stack: use hpack == 0.38.1 to match upstream

See https://github.com/NixOS/nixpkgs/issues/223390 for background info.

pkgs/development/haskell-modules/configuration-common.nix

@@ -2124,7 +2124,7 @@ with haskellLib;
     self: super: {
       # stack needs to be built with the same hpack version that the upstream releases use.
       # https://github.com/NixOS/nixpkgs/issues/223390
-      hpack = self.hpack_0_38_0;
+      hpack = self.hpack_0_38_1;
     }
   );
 

pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml

@@ -96,7 +96,6 @@ extra-packages:
   - hlint == 3.4.1                      # 2022-09-21: preserve for ghc 8.10
   - hlint == 3.6.*                      # 2025-04-14: needed for hls with ghc-lib-parser 9.6
   - hnix-store-core < 0.7               # 2023-12-11: required by hnix-store-remote 0.6
-  - hpack == 0.38.0                     # 2025-04-23: preserve for stack == 3.5.1
   - hspec < 2.8                         # 2022-04-07: Needed for tasty-hspec 1.1.6
   - hspec-core < 2.8                    # 2022-04-07: Needed for tasty-hspec 1.1.6
   - hspec-discover < 2.8                # 2022-04-07: Needed for tasty-hspec 1.1.6

pkgs/development/haskell-modules/hackage-packages.nix

@@ -343075,139 +343075,6 @@ self: {
     }
   ) { };
 
-  "hpack_0_38_0" = callPackage (
-    {
-      mkDerivation,
-      aeson,
-      base,
-      bifunctors,
-      bytestring,
-      Cabal,
-      containers,
-      crypton,
-      deepseq,
-      directory,
-      filepath,
-      Glob,
-      hspec,
-      hspec-discover,
-      http-client,
-      http-client-tls,
-      http-types,
-      HUnit,
-      infer-license,
-      interpolate,
-      mockery,
-      mtl,
-      pretty,
-      QuickCheck,
-      scientific,
-      template-haskell,
-      temporary,
-      text,
-      transformers,
-      unordered-containers,
-      vector,
-      yaml,
-    }:
-    mkDerivation {
-      pname = "hpack";
-      version = "0.38.0";
-      sha256 = "0iysz3xnxhjj49hjz9gv56awaldamrbidkiw0xd873g5yfyhyljp";
-      revision = "1";
-      editedCabalFile = "02pqfqqijvr2z3ki2rnb9nlavhzm59qbbvhq89bfdvhcicfgmmf4";
-      isLibrary = true;
-      isExecutable = true;
-      libraryHaskellDepends = [
-        aeson
-        base
-        bifunctors
-        bytestring
-        Cabal
-        containers
-        crypton
-        deepseq
-        directory
-        filepath
-        Glob
-        http-client
-        http-client-tls
-        http-types
-        infer-license
-        mtl
-        pretty
-        scientific
-        text
-        transformers
-        unordered-containers
-        vector
-        yaml
-      ];
-      executableHaskellDepends = [
-        aeson
-        base
-        bifunctors
-        bytestring
-        Cabal
-        containers
-        crypton
-        deepseq
-        directory
-        filepath
-        Glob
-        http-client
-        http-client-tls
-        http-types
-        infer-license
-        mtl
-        pretty
-        scientific
-        text
-        transformers
-        unordered-containers
-        vector
-        yaml
-      ];
-      testHaskellDepends = [
-        aeson
-        base
-        bifunctors
-        bytestring
-        Cabal
-        containers
-        crypton
-        deepseq
-        directory
-        filepath
-        Glob
-        hspec
-        http-client
-        http-client-tls
-        http-types
-        HUnit
-        infer-license
-        interpolate
-        mockery
-        mtl
-        pretty
-        QuickCheck
-        scientific
-        template-haskell
-        temporary
-        text
-        transformers
-        unordered-containers
-        vector
-        yaml
-      ];
-      testToolDepends = [ hspec-discover ];
-      description = "A modern format for Haskell packages";
-      license = lib.licenses.mit;
-      hydraPlatforms = lib.platforms.none;
-      mainProgram = "hpack";
-    }
-  ) { };
-
   "hpack_0_38_1" = callPackage (
     {
       mkDerivation,