chore(package): update coveralls to version 3.0.7

Closes #580

Author: greenkeeper[bot]

package.json

@@ -23,7 +23,7 @@
     "devDependencies": {
         "chai": "4.2.0",
         "chai-spies": "1.0.0",
-        "coveralls": "3.0.3",
+        "coveralls": "3.0.7",
         "eslint": "5.16.0",
         "espree": "5.0.1",
         "gulp": "4.0.2",