Mark some tests as expected fails on cairo < 1.12
Mark some tests as expected fails on cairo < 1.12

andrewleech/WeasyPrint,marclaporte/WeasyPrint,jasco/WeasyPrint,Kozea/WeasyPrint,prepare/TestWeasyPrint,jasco/WeasyPrint,andrewleech/WeasyPrint,prepare/TestWeasyPrint,Kozea/WeasyPrint,marclaporte/WeasyPrint