mkvtoolnix: Update to 13.0.0

Closes: #6852 [via git-merge-pr]

srcpkgs/mkvtoolnix/template

@@ -1,6 +1,6 @@
 # Template file for 'mkvtoolnix'
 pkgname=mkvtoolnix
-version=12.0.0
+version=13.0.0
 revision=1
 build_style=gnu-configure
 configure_args="--without-curl --with-docbook-xsl-root=/usr/share/xsl/docbook --enable-qt"
@@ -12,7 +12,7 @@ maintainer="Jürgen Buchmüller <pullmoll@t-online.de>"
 license="GPL-2"
 homepage="https://www.bunkus.org/videotools/mkvtoolnix/"
 distfiles="${homepage}/sources/${pkgname}-${version}.tar.xz"
-checksum=5c2401d1cc36d8a2d57cb791a5a22f3cda69cb0824c6cee35326b35e7f94b536
+checksum=855e4ea7b0d5a7066dc8db6f8f54a1d9da8ed5616d9c1cea8bc198d4adb57642
 nocross="Fails due to dependency chain eigen -> jack -> pulseaudio"
 
 pre_configure() {