cups-filters: 1.20.2 -> 1.20.3

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/cups-filters/versions.

These checks were done:

- built on NixOS
- ran ‘/nix/store/h8hpf5fjx7fg0p1sv9yyvg6b803k61k4-cups-filters-1.20.3/bin/foomatic-rip -h’ got 0 exit code
- ran ‘/nix/store/h8hpf5fjx7fg0p1sv9yyvg6b803k61k4-cups-filters-1.20.3/bin/foomatic-rip --help’ got 0 exit code
- found 1.20.3 with grep in /nix/store/h8hpf5fjx7fg0p1sv9yyvg6b803k61k4-cups-filters-1.20.3
- directory tree listing: https://gist.github.com/aa62a318dc23326b357322da3e567915

pkgs/misc/cups/filters.nix

@@ -9,11 +9,11 @@ let
 
 in stdenv.mkDerivation rec {
   name = "cups-filters-${version}";
-  version = "1.20.2";
+  version = "1.20.3";
 
   src = fetchurl {
     url = "http://openprinting.org/download/cups-filters/${name}.tar.xz";
-    sha256 = "1f6dw476m9gc94jy38f79a5aa40mk91yc81cdwrsz42wlz3nbdq2";
+    sha256 = "1g18qkvl9zdxickiblgs2vvkip4b6p2jalw4d30zzz3hh8f1g6iv";
   };
 
   nativeBuildInputs = [ pkgconfig makeWrapper ];