katago: Corrected git commit hash to be the tagged version, not the old tagged version

pkgs/games/katago/default.nix

···
 in env.mkDerivation rec {
   pname = "katago";
   version = "1.9.1";
-  githash = "b846bddd88fbc5353e4a93fa514f6cbf45358362";
+  githash = "c3220a5a404af835792c476f3f24904e4b799444";
 
   src = fetchFromGitHub {
     owner = "lightvector";