dico: 2.3 -> 2.4

pkgs/servers/dico/default.nix

@@ -2,11 +2,11 @@
 , guile, python, pcre, libffi, groff }:
 
 stdenv.mkDerivation rec {
-  name = "dico-2.3";
+  name = "dico-2.4";
 
   src = fetchurl {
     url = "mirror://gnu/dico/${name}.tar.xz";
-    sha256 = "13by0zimx90v2j8v7n4k9y3xwmh4q9jdc2f4f8yjs3x7f5bzm2pk";
+    sha256 = "13m7vahfbdj7hb38bjgd4cmfswavvxrcpppj9n4m4rar3wyzg52g";
   };
 
   hardeningDisable = [ "format" ];