chore(package): update coveralls to version 3.0.12

Closes #24

Author: greenkeeper[bot]

package.json

@@ -43,7 +43,7 @@
     "condition-circle": "1.5.0",
     "compression": "1.0.3",
     "cors": "2.8.3",
-    "coveralls": "2.13.1",
+    "coveralls": "3.0.12",
     "eslint": "3.19.0",
     "eslint-config-fullcube": "2.0.2",
     "faker": "4.1.0",