chore(package): update coveralls to version 3.1.0

Closes #185

Author: greenkeeper[bot]

package.json

@@ -27,7 +27,7 @@
     "babel-eslint": "10.0.3",
     "babel-jest": "24.9.0",
     "babel-plugin-external-helpers": "6.22.0",
-    "coveralls": "3.0.7",
+    "coveralls": "3.1.0",
     "cross-env": "6.0.3",
     "eslint": "6.6.0",
     "eslint-config-airbnb": "18.0.1",