chore(deps): update dependency coveralls to v3.1.0 (#565)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package.json

@@ -52,7 +52,7 @@
   },
   "devDependencies": {
     "chai": "4.2.0",
-    "coveralls": "3.0.9",
+    "coveralls": "3.1.0",
     "eslint": "6.8.0",
     "eslint-config-standard": "14.1.1",
     "eslint-plugin-import": "2.20.0",