New comment by mvf on void-packages repository

https://github.com/void-linux/void-packages/pull/39870#issuecomment-1274921292

Comment:
Good catch! It was all working because the build process silently vendored 1.7.1. :sweat_smile: 

Updated `libmatroska` to 1.7.1. Should be ABI-compatible with 1.6.3, so no revbumps required:

> They should restore ABI compatibility with libEBML v1.4.2 & libMatroska v1.6.3 respectively [...]

I briefly tested with VLC just to be sure.