See [ChangeLog](https://github.com/xkbcommon/libxkbcommon/compare/xkbcommon-0.8.4...xkbcommon-0.10.0) changes and [ABI](https://abi-laboratory.pro/tracker/timeline/xkbcommon/). Other changes:
- Switch to `USES=meson` after [xkbcommon-0.8.4-30-g25cd67d](https://github.com/xkbcommon/libxkbcommon/commit/25cd67daf7ef)
- Drop `USES=xorg-cat` until it supports Meson build
- Add `DIST_SUBDIR` to mimic `USES=xorg-cat`