cups-filters: 1.20.0 -> 1.20.1

Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 1.20.1 with grep in /nix/store/233chsllrfymrvizn74nf8sav0r0llrb-cups-filters-1.20.1

pkgs/misc/cups/filters.nix

@@ -9,11 +9,11 @@ let
 
 in stdenv.mkDerivation rec {
   name = "cups-filters-${version}";
-  version = "1.20.0";
+  version = "1.20.1";
 
   src = fetchurl {
     url = "http://openprinting.org/download/cups-filters/${name}.tar.xz";
-    sha256 = "0g6npicm1cwmxqi6ymfvf9wkplp4z2rzvjjl9v4yfvqdjq85gxnp";
+    sha256 = "0qix1whz5n4ijnl6d44f1v8nzkpv99wqjyrby8vx6xnpskw5hsxk";
   };
 
   nativeBuildInputs = [ pkgconfig makeWrapper ];