fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/npm:lodash:20180130

Latest report for pattern-lab/patternlab-node:
https://snyk.io/test/github/pattern-lab/patternlab-node

Author: snyk-bot

package.json

@@ -1,7 +1,6 @@
 {
   "name": "@pattern-lab/patternlab-node",
-  "description":
-    "Pattern Lab is a collection of tools to help you create atomic design systems. This is the node command line interface (CLI).",
+  "description": "Pattern Lab is a collection of tools to help you create atomic design systems. This is the node command line interface (CLI).",
   "version": "3.0.0-alpha.7",
   "main": "./core/index.js",
   "dependencies": {
@@ -15,7 +14,7 @@
     "graphlib": "^2.1.1",
     "js-beautify": "^1.6.3",
     "js-yaml": "^3.6.1",
-    "lodash": "~4.13.1",
+    "lodash": "~4.17.5",
     "markdown-it": "^6.0.1",
     "node-fetch": "^1.6.0",
     "recursive-copy": "^2.0.6",