Use webkitgtk-6.0 if available
In WebKitGTK 2.39.1, the webkit2gtk-5.0 API has been replaced by webkitgtk-6.0. The API is still unstable for now, but hopefully will be stable in time for GNOME 44.
In WebKitGTK 2.39.1, the webkit2gtk-5.0 API has been replaced by webkitgtk-6.0. The API is still unstable for now, but hopefully will be stable in time for GNOME 44.