Comment 10 for bug 1973033

In fact upstream is sort of forcing us to go that way now

https://webkitgtk.org/2022/11/11/webkitgtk2.39.1-released.html
> Remove internal nested wayland compositor making libwpe mandatory when building with wayland enabled.

if we want to keep rolling newer webkitgtk version as security updates we will need to build with wpe