chore(package): update mocha to version 7.1.0

Closes #26

Author: greenkeeper[bot]

package.json

@@ -86,7 +86,7 @@
     "eslint-config-godaddy": "^3.0.0",
     "eslint-plugin-json": "^1.2.0",
     "eslint-plugin-mocha": "^5.0.0",
-    "mocha": "^6.0.1",
+    "mocha": "^7.1.0",
     "nock": "^10.0.6",
     "proxyquire": "^2.0.1",
     "rewire": "^4.0.1",