chore(package): update np to version 2.12.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -69,7 +69,7 @@
     "eslint-plugin-require-path-exists": "^1.1.5",
     "eslint-plugin-xo": "^1.0.0",
     "husky": "^0.11.9",
-    "np": "^2.11.0",
+    "np": "^2.12.0",
     "nyc": "^10.0.0",
     "testen": "^1.8.2",
     "updtr": "^0.2.2"