Bump coveralls from 2.13.3 to 3.1.0

Bumps [coveralls](https://github.com/nickmerwin/node-coveralls) from 2.13.3 to 3.1.0.
- [Release notes](https://github.com/nickmerwin/node-coveralls/releases)
- [Commits](https://github.com/nickmerwin/node-coveralls/commits/v3.1.0)

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

Author: dependabot-preview[bot]

package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "devDependencies": {
-    "coveralls": "^2.13.1",
+    "coveralls": "^3.1.0",
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.15.2",
     "eslint": "^4.19.1",