chore(package): update coveralls to version 3.0.6

Closes #18

Author: greenkeeper[bot]

package.json

@@ -33,7 +33,7 @@
     "chai-datetime": "^1.4.1",
     "condition-circle": "^1.5.0",
     "conventional-commit-types": "^2.1.0",
-    "coveralls": "^2.13.0",
+    "coveralls": "^3.0.6",
     "dirty-chai": "^1.2.2",
     "eslint-config-fullcube": "^2.0.2",
     "loopback": "^3.6.0",