Bump mocha from 8.2.1 to 8.3.0

Bumps [mocha](https://github.com/mochajs/mocha) from 8.2.1 to 8.3.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mochajs/mocha/compare/v8.2.1...v8.3.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -68,7 +68,7 @@
     "katex": "^0.12.0",
     "lodash.debounce": "^4.0.3",
     "loose-envify": "^1.4.0",
-    "mocha": "8.2.1",
+    "mocha": "8.3.0",
     "mustache": "^4.0.1",
     "mustache-express": "^1.3.0",
     "npm-packlist": "^2.0.1",