Update wlroots submodule
Forward to 9fb251c33fc404f106f0b4e3b6839de9d4753a4c for virtual keyboard keycode 0 fix (wlroots!57).
Fixes #96 (closed)
Forward to 9fb251c33fc404f106f0b4e3b6839de9d4753a4c for virtual keyboard keycode 0 fix (wlroots!57).
Fixes #96 (closed)