chore(package): update mocha to version 7.0.1

Closes #186

Author: greenkeeper[bot]

package.json

@@ -88,7 +88,7 @@
     "husky": "^0.14.3",
     "jest": "^22.0.4",
     "lint-staged": "7.2.0",
-    "mocha": "^5.0.0",
+    "mocha": "^7.0.1",
     "nodemon": "^1.14.12",
     "prettier": "^1.9.2",
     "puppeteer": "^1.2.0",