libdvdread: 5.0.3 -> 6.0.0

Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:

- built on NixOS
/tmp/tmp.VPeJUrg2fP /home/ryantm/.cache/nixpkgs
/home/ryantm/.cache/nixpkgs
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 6.0.0 with grep in /nix/store/dr0ps08716fhniggawzg9f9s7d74r8v7-libdvdread-6.0.0
- directory tree listing: https://gist.github.com/63bc02c878936a5428bbd234fd6c26c8