Merge pull request #56 from neogeek/greenkeeper/codecov-3.0.0

Update codecov to the latest version 🚀

Author: neogeek

package.json

@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@neogeek/eslint-config-standards": "^2.0.0",
-    "codecov": "^2.2.0",
+    "codecov": "^3.0.0",
     "eslint": "^4.2.0",
     "istanbul": "^0.4.5",
     "mocha": "^4.0.1"