Update package.json

Author: bddjr

package.json

@@ -12,7 +12,7 @@
   ],
   "type": "module",
   "scripts": {
-    "build": "rimraf dist && tsc && node build.js && cd test && node --run build",
+    "build": "rimraf dist && tsc && node build.js && cd test && npm run build",
     "prepublishOnly": "node --run build"
   },
   "repository": {