ace: 6.4.7 -> 6.4.8 (#40696)

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

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

These checks were done:

- built on NixOS
- /nix/store/2bjwljxg8xr8f44h622mqc3xacy9419y-ace-6.4.8/bin/ace_gperf passed the binary check.
- 1 of 1 passed binary check by having a zero exit code.
- 0 of 1 passed binary check by having the new version present in output.
- found 6.4.8 with grep in /nix/store/2bjwljxg8xr8f44h622mqc3xacy9419y-ace-6.4.8
- directory tree listing: https://gist.github.com/246159b0e45b5fe1369de042fd0534cf
- du listing: https://gist.github.com/dc07102e153c9c3a7f97e1fe743aed1b

pkgs/development/libraries/ace/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "ace-${version}";
-  version = "6.4.7";
+  version = "6.4.8";
 
   src = fetchurl {
     url = "http://download.dre.vanderbilt.edu/previous_versions/ACE-${version}.tar.bz2";
-    sha256 = "1zbncdxkkwnx4aphy0apnp7xn4aspxvq2h9bbjh33dpsy0j81afd";
+    sha256 = "190cyfs2najph2yycyj8abzddwa8s4wx8lx38iv237plwfl2308g";
   };
 
   enableParallelBuilding = true;