chore(deps): update dependency mocha to v8

Author: renovate-bot

package-lock.json

@@ -73,7 +73,7 @@
     "enzyme-adapter-react-16": "1.15.2",
     "husky": "4.2.5",
     "lockfile-lint": "4.3.6",
-    "mocha": "7.2.0",
+    "mocha": "8.0.0",
     "npm-run-all": "4.1.5",
     "nyc": "15.1.0",
     "remark-cli": "8.0.0",