chore(package): update dependencies

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -34,7 +34,7 @@
   },
   "homepage": "https://github.com/diasdavid/js-peer-id",
   "devDependencies": {
-    "aegir": "^3.1.1",
+    "aegir": "^6.0.0",
     "chai": "^3.5.0",
     "pre-commit": "^1.1.3"
   },