Update package.json

Author: xiaofan9

package.json

@@ -35,6 +35,7 @@
     "eslint-plugin-vue": "^7.2.0",
     "gulp": "^4.0.2",
     "gulp-json-editor": "^2.5.4",
+    "merge": "^2.1.0",
     "ora": "^5.1.0",
     "rimraf": "^3.0.2",
     "terser-webpack-plugin": "^5.0.3",