Bump the wayland-protocol dependency version in order to include dma-buf
feedback, whose support in Weston is added in the next commits.

Also, as we need the newer EGL extension EGL_EXT_device_drm_render_node
to add the support for dma-buf feedback, bump the Mesa dependency
version as well.

It also includes some minor changes in order to keep build-deps.sh more
consistent.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>