Update package.json

Author: songyumeng

src/leaflet/package.json

@@ -16,7 +16,7 @@
  "dependencies": {
  "@turf/turf": "5.1.6",
  "echarts":"4.3.0",
- "mapv":"2.0.38",
+ "mapv":"2.0.42",
  "leaflet": "1.5.1",
  "@supermap/iclient-common": "10.0.1",
  "@mapbox/vector-tile": "1.3.0",