[Dev Deps] update coveralls

Author: ljharb

package.json

@@ -69,7 +69,7 @@
     "babel-register": "^6.26.0",
     "babylon": "^6.18.0",
     "chai": "^4.3.4",
-    "coveralls": "^3.1.0",
+    "coveralls": "^3.1.1",
     "cross-env": "^4.0.0",
     "eslint": "^2 || ^3 || ^4 || ^5 || ^6 || ^7.2.0",
     "eslint-import-resolver-node": "file:./resolvers/node",