grml-zsh-config: 0.19.3 -> 0.19.4

pkgs/shells/zsh/grml-zsh-config/default.nix

···
 
 stdenv.mkDerivation rec {
   pname = "grml-zsh-config";
-  version = "0.19.3";
+  version = "0.19.4";
 
   src = fetchFromGitHub {
     owner = "grml";
     repo = "grml-etc-core";
     rev = "v${version}";
-    sha256 = "sha256-/WNBZcLGtlAsPKQpV8AMFgZZVHc2yMlCbvGmbH4BLfY=";
+    sha256 = "sha256-2TAhs2/yAVAU35IeVfT/68xLt9QZ4fLxMQjxnbCfBKs=";
   };
 
   strictDeps = true;