Bump coveralls from 2.13.3 to 3.0.2

Bumps [coveralls](https://github.com/nickmerwin/node-coveralls) from 2.13.3 to 3.0.2.
- [Release notes](https://github.com/nickmerwin/node-coveralls/releases)
- [Commits](https://github.com/nickmerwin/node-coveralls/commits/3.0.2)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

package.json

@@ -35,7 +35,7 @@
   },
   "devDependencies": {
     "chai": "^4.2.0",
-    "coveralls": "^2.11.15",
+    "coveralls": "^3.0.2",
     "eslint": "^4.19.1",
     "eslint-config-airbnb-base": "^11.0.1",
     "eslint-plugin-import": "^2.2.0",