chore(package): update coveralls to version 3.0.1

Author: greenkeeper[bot]

package.json

@@ -61,7 +61,7 @@
   "devDependencies": {
     "autoprefixer": "7.2.6",
     "ava": "0.25.0",
-    "coveralls": "2.13.2",
+    "coveralls": "3.0.1",
     "execa": "0.9.0",
     "nyc": "11.4.1",
     "standard-version": "4.3.0",