update to mapnik 3.4.16
update to mapnik 3.4.16

Zhao-Qi/mapbox-studio-classic,Zhao-Qi/mapbox-studio-classic,Zhao-Qi/mapbox-studio-classic,mapbox/mapbox-studio-classic,mapbox/mapbox-studio,mapbox/mapbox-studio-classic,Zhao-Qi/mapbox-studio-classic,mapbox/mapbox-studio,mapbox/mapbox-studio-classic,mapbox/mapbox-studio,Zhao-Qi/mapbox-studio-classic,mapbox/mapbox-studio,mapbox/mapbox-studio-classic,mapbox/mapbox-studio