chore: update lodash to fix npm audit

Author: imlucas

package.json

@@ -14,7 +14,7 @@
   ],
   "dependencies": {
     "debug": "^2.2.0",
-    "lodash": "^3.10.1",
+    "lodash": "^4.17.15",
     "mkdirp": "0.5.0",
     "mongodb-core": "*",
     "rimraf": "2.2.6"