nixpkgs: Update submodule:

* include fixes for GHC segfaulting: (NixOS/nixpkgs#129247, NixOS/nixpkgs#129289)
* musl 1.2.2, including this important fix from musl 1.2.0:
  #98 (comment)
* workaround for fontforge execution failure due to wrong RPATH:
  NixOS/nixpkgs#94126
* ilmbase musl compilation error:
  NixOS/nixpkgs#94205
* mesa: Fix `-Werror=int-conversion` build error on musl:
  NixOS/nixpkgs#94207

survey:

* Update file in which stackage packages are listed.
  See nixpkgs commit

      7f236bd4 - hackage2nix: Split configuration, auto disable hydra builds

Author: nh2

nixpkgs

@@ -128,7 +128,7 @@ let
   # Contains a list of package names (strings).
   stackagePackages =
     let
-      stackageInfoPath = pkgs.path + "/pkgs/development/haskell-modules/configuration-hackage2nix.yaml";
+      stackageInfoPath = pkgs.path + "/pkgs/development/haskell-modules/configuration-hackage2nix/stackage.yaml";
       pythonWithYaml = pkgs.python2Packages.python.withPackages (pkgs: [pkgs.pyyaml]);
       dont-distribute-packages-file = normalPkgs.runCommand "test" {} ''
         ${pythonWithYaml}/bin/python -c 'import yaml, json; x = yaml.load(open("${stackageInfoPath}")); print(json.dumps([line.split(" ")[0] for line in x["default-package-overrides"]]))' > $out