package/wlroots: bump to version 0.13.0

Update wlroots to version 0.13.0. This is a release which changes
API/ABI, applications which use wlroots need to be rebuilt. Currently in
Buildroot there is only cage, to be updated by a follow-up patch of the
series.

Additionally, remove usage of the xcb-icccm build option, which is no
longer available and update the dependencies needed by the X11 support.
Note that the dependencies neded by the X11 backend are a superset of
the ones needed for XWayland support, so we can make toggle both Meson
options at once.

Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>