tests: skip a cairo.Path check with older pycairo, it was added with 1.15.1
tests: skip a cairo.Path check with older pycairo, it was added with 1.15.1

Noticed because the gnome sdk image has pycairo 1.14.1

pexip/pygobject,pexip/pygobject,GNOME/pygobject,GNOME/pygobject,pexip/pygobject,GNOME/pygobject