Bump mocha from 8.4.0 to 9.0.2

Bumps [mocha](https://github.com/mochajs/mocha) from 8.4.0 to 9.0.2.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v8.4.0...v9.0.2)

---
updated-dependencies:
- dependency-name: mocha
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -94,7 +94,7 @@
 		"depcheck": "^1.4.2",
 		"eslint": "^7.31.0",
 		"eslint-config-google": "^0.14.0",
-		"mocha": "^8.4.0",
+		"mocha": "^9.0.2",
 		"nyc": "^15.1.0",
 		"serve-static": "^1.14.1"
 	}