haskell-keys: add version 3.0.3

pkgs/development/libraries/haskell/keys/default.nix

@@ -0,0 +1,19 @@
+{ cabal, comonadsFd, comonadTransformers, free, semigroupoids
+, semigroups, transformers
+}:
+
+cabal.mkDerivation (self: {
+  pname = "keys";
+  version = "3.0.3";
+  sha256 = "1fqw0745pj8pzjjlrbg85gdr3acm7gpip5052m9wcz997949ca3r";
+  buildDepends = [
+    comonadsFd comonadTransformers free semigroupoids semigroups
+    transformers
+  ];
+  meta = {
+    homepage = "http://github.com/ekmett/keys/";
+    description = "Keyed functors and containers";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})

pkgs/top-level/haskell-packages.nix

@@ -1346,6 +1346,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   kansasLava = callPackage ../development/libraries/haskell/kansas-lava {};
 
+  keys = callPackage ../development/libraries/haskell/keys {};
+
   knob = callPackage ../development/libraries/haskell/knob {};
 
   languageC = callPackage ../development/libraries/haskell/language-c {};