4ti2: add myself to maintainers

pkgs/applications/science/math/4ti2/default.nix

···
     homepage = "https://4ti2.github.io/";
     description = "A software package for algebraic, geometric and combinatorial problems on linear spaces";
     license = with licenses; [ gpl2Plus ];
+    maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.all;
   };
 }