chore(deps): update dependency mocha to v8

Author: renovate-bot

package-lock.json

@@ -77,7 +77,7 @@
     "husky": "4.2.5",
     "lockfile-lint": "4.3.6",
     "microformat-node": "2.0.1",
-    "mocha": "7.2.0",
+    "mocha": "8.0.0",
     "npm-run-all": "4.1.5",
     "nyc": "15.1.0",
     "react": "16.13.1",