chore(package): update mocha to version 7.1.1

Closes #77

Author: greenkeeper[bot]

package.json

@@ -24,7 +24,7 @@
     "aws-sdk": "2.573.0",
     "axios": "^0.19.0",
     "eslint": "^6.6.0",
-    "mocha": "^6.2.2",
+    "mocha": "^7.1.1",
     "node-jre": "^0.2.3",
     "nyc": "^14.1.1",
     "serverless": "^1.57.0",