khard: 0.11.4 -> 0.12.2

pkgs/applications/misc/khard/default.nix

···
 { stdenv, fetchurl, fetchFromGitHub, glibcLocales, python3Packages }:
 
 python3Packages.buildPythonApplication rec {
-  version = "0.11.4";
+  version = "0.12.2";
   name = "khard-${version}";
   namePrefix = "";
 
   src = fetchurl {
     url = "https://github.com/scheibler/khard/archive/v${version}.tar.gz";
-    sha256 = "1hngg3z5cdjny7wdf2mf9wv35ffx7ivpq6mx7kgqf40fr5905l0r";
+    sha256 = "0lxcvzmafpvqcifgq2xjh1ca07z0vhihn5jnw8zrpmsqdc9p6b4j";
   };
 
   # setup.py reads the UTF-8 encoded readme.
···
     configobj
     vobject
     argparse
-    pyyaml
+    ruamel_yaml
+    ruamel_base
+    unidecode
   ];
 
   # Fails; but there are no tests anyway.