fix(package): update figures to version 3.1.0

Closes #23

Author: greenkeeper[bot]

package.json

@@ -21,7 +21,7 @@
   "main": "lib/index.js",
   "dependencies": {
     "chalk": "^2.0.0",
-    "figures": "^2.0.0",
+    "figures": "^3.1.0",
     "highlight-es": "^1.0.0",
     "lodash": "^4.15.0",
     "strip-ansi": "^5.0.0"