Update dependency coveralls to v3.0.9

Author: renovate-bot

package.json

@@ -41,7 +41,7 @@
     "@babel/register": "7.7.4",
     "ava": "2.4.0",
     "codeclimate-test-reporter": "0.5.1",
-    "coveralls": "3.0.8",
+    "coveralls": "3.0.9",
     "esdoc": "1.1.0",
     "nyc": "14.1.1"
   },