mod_wsgi: 4.6.3 -> 4.6.4

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

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

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 4.6.4 with grep in /nix/store/q2skhgd8vwbrff24z9v979h92dwnza35-mod_wsgi-4.6.4
- directory tree listing: https://gist.github.com/aa4e38d80fddf2c367d88e0578a73fb0

pkgs/servers/http/apache-modules/mod_wsgi/default.nix

@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "mod_wsgi-${version}";
-  version = "4.6.3";
+  version = "4.6.4";
 
   src = fetchurl {
     url = "https://github.com/GrahamDumpleton/mod_wsgi/archive/${version}.tar.gz";
-    sha256 = "1vi2bf2spak70qqc1c673a7pwmzq01gmli43xwhrwdw7l2ig4wj9";
+    sha256 = "1hyaxr9km7cj4k6b0d6xx3bplpa8483fhyk9x802sl22m3f2vc1k";
   };
 
   buildInputs = [ apacheHttpd python2 ];