chore(deps): update dependency mocha to v8.2.1

Author: renovate-bot

package-lock.json

@@ -61,7 +61,7 @@
     "husky": "4.3.0",
     "load-grunt-config": "3.0.1",
     "markdownlint-cli": "0.24.0",
-    "mocha": "8.2.0",
+    "mocha": "8.2.1",
     "nodejs-dashboard": "0.5.1",
     "nodemon": "2.0.6",
     "npm-run-all": "4.1.5",