Lua 5.2 is required to enable mpv player support of builtin stats OSD.
MPV doesn't support later Lua versions, newer versions aren't backwards
compatible, thus including version in a package name.
Upstream Lua doesn't include pkg-config file, including one from ArchLinux.
See https://github.com/mpv-player/mpv/wiki/FAQ#Why_does_mpv_not_support_Lua_53_or_newer
