fix: update vulnerable lodash version

Author: Konstantin Yegupov

package.json

@@ -41,7 +41,7 @@
   },
   "dependencies": {
     "graphlib": "^2.1.5",
-    "lodash": "^4",
+    "lodash": "^4.7.13",
     "object-hash": "^1.3.1",
     "semver": "^6.0.0",
     "source-map-support": "^0.5.11",