chore(package): update coveralls to version 3.0.11

Closes #12

Author: greenkeeper[bot]

package.json

@@ -56,7 +56,7 @@
   ],
   "devDependencies": {
     "ava": "1.3.0",
-    "coveralls": "3.0.3",
+    "coveralls": "3.0.11",
     "execa": "1.0.0",
     "nyc": "13.3.0"
   }