bump version to 1.3.0 (#6003)
bump version to 1.3.0 (#6003)


stefanocudini/Leaflet,CapeSepias/Leaflet,CapeSepias/Leaflet,Leaflet/Leaflet,msiadak/Leaflet,stefanocudini/Leaflet,msiadak/Leaflet,msiadak/Leaflet,CapeSepias/Leaflet,stefanocudini/Leaflet,Leaflet/Leaflet,Leaflet/Leaflet