libmatroska: update to 1.6.3,

- project uses github for the official git repos, changing distfiles to
github to take advantage,
- change homepage,
- adjust wrksrc.

srcpkgs/libmatroska/template

@@ -1,16 +1,17 @@
 # Template file for 'libmatroska'
 pkgname=libmatroska
-version=1.6.2
+version=1.6.3
 revision=1
+wrksrc="${pkgname}-release-${version}"
 build_style=cmake
 configure_args="-DBUILD_SHARED_LIBS=ON"
 makedepends="libebml-devel"
 short_desc="Extensible open standard Audio/Video container format"
 maintainer="Orphaned <orphan@voidlinux.org>"
 license="LGPL-2.1-or-later"
-homepage="https://dl.matroska.org/downloads/libmatroska/"
-distfiles="https://dl.matroska.org/downloads/libmatroska/libmatroska-${version}.tar.xz"
-checksum=bc4479aa8422ab07643df6a1fa5a19e4bed4badfd41ca77e081628620d1e1990
+homepage="https://www.matroska.org/downloads/libraries.html"
+distfiles="https://github.com/Matroska-Org/libmatroska/archive/refs/tags/release-${version}.tar.gz"
+checksum=0c8c875ae26ac69a722f7fd0f4a4fecb4fdff681f2a165f09c06a40cbf1d0de6
 
 libmatroska-devel_package() {
 	depends="${makedepends} ${sourcepkg}>=${version}_${revision}"