chore(package): update coveralls to version 3.0.0

Author: greenkeeper[bot]

package.json

@@ -30,7 +30,7 @@
   "homepage": "https://github.com/SimplePEG/JavaScript#readme",
   "devDependencies": {
     "chai": "^4.1.0",
-    "coveralls": "^2.11.9",
+    "coveralls": "^3.0.0",
     "eslint": "^4.4.1",
     "istanbul": "^0.4.4",
     "mocha": "^3.5.0",