Update package.json

Author: songyumeng

src/openlayers/package.json

@@ -16,7 +16,7 @@
  "dependencies": {
  "@turf/turf": "5.1.6",
  "echarts": "4.3.0",
- "mapv": "2.0.38",
+ "mapv": "2.0.42",
  "ol": "6.1.1",
  "@supermap/iclient-common": "10.0.1",
  "proj4": "2.5.0",