⬆️ deps: handlebars@4.0.13

- fixes potential RCE, see https://github.com/wycats/handlebars.js/blob/v4.0.13/release-notes.md#v4013---february-7th-2019

Author: kevinansfield

package-lock.json

@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "bluebird": "^3.5.3",
-    "handlebars": "4.0.12",
+    "handlebars": "4.0.13",
     "js-beautify": "1.8.8",
     "lodash": "^4.17.11",
     "readdirp": "2.2.1"