ci: Bump libwayland to 1.24.0

This is required to update Weston.  This also requires that we start
building the scanner from source since libwayland 1.24 also requires
libwayland-scanner 1.24 which means there's no point in installing the
libwayland dev packages.

Reviewed-by: Valentine Burley <valentine.burley@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36026>
4 files changed