chore(package): update aegir to version 8.0.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -32,7 +32,7 @@
   },
   "homepage": "https://github.com/diasdavid/js-libp2p-tcp",
   "devDependencies": {
-    "aegir": "^6.0.1",
+    "aegir": "^8.0.0",
     "chai": "^3.5.0",
     "interface-transport": "^0.3.3",
     "lodash.isfunction": "^3.0.8",