Merge pull request #220 from shelfio/renovate/node-6.x

chore(deps): update dependency node to v6

Author: Rafler

.circleci/config.yml

@@ -1,5 +1,5 @@
 orbs:
-  node: circleci/node@5.3.0
+  node: circleci/node@6.3.0
 
 version: 2.1