chore(deps-dev): bump mocha from 7.2.0 to 8.4.0

Bumps [mocha](https://github.com/mochajs/mocha) from 7.2.0 to 8.4.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v7.2.0...v8.4.0)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -43,7 +43,7 @@
   "devDependencies": {
     "chai": "^4.1.2",
     "cz-conventional-changelog": "3.2.0",
-    "mocha": "^7.0.0",
+    "mocha": "^8.4.0",
     "nock": "^12.0.0",
     "nyc": "^15.0.0",
     "rewire": "^5.0.0",