chore(package): update code to version 5.2.4

Closes #7

Author: greenkeeper[bot]

package.json

@@ -31,7 +31,7 @@
   },
   "homepage": "https://github.com/simon-p-r/hapi-json-schema#readme",
   "devDependencies": {
-    "code": "^4.0.0",
+    "code": "^5.2.4",
     "coveralls": "^2.13.1",
     "hapi": "^16.1.1",
     "lab": "^13.0.2"