mkvtoolnix: 24.0.0 -> 25.0.0

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools. This update was made based on information from https://repology.org/metapackage/mkvtoolnix/versions.

pkgs/applications/video/mkvtoolnix/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "mkvtoolnix-${version}";
-  version = "24.0.0";
+  version = "25.0.0";
 
   src = fetchFromGitLab {
     owner  = "mbunkus";
     repo   = "mkvtoolnix";
     rev    = "release-${version}";
-    sha256 = "0r6v7n4wq1ivjcfs4br5ywz2f0jbwxrharfcjmycnbjsckz1l7ps";
+    sha256 = "04m57719q7q0h0gcj1b2bh8xbdcl5bijic4hw71xf9xd19a95k78";
   };
 
   nativeBuildInputs = [