Bump json5 and babel-loader in /demo

Bumps [json5](https://github.com/json5/json5) to 2.2.3 and updates ancestor dependency [babel-loader](https://github.com/babel/babel-loader). These dependencies need to be updated together.


Updates `json5` from 2.2.0 to 2.2.3
- [Release notes](https://github.com/json5/json5/releases)
- [Changelog](https://github.com/json5/json5/blob/main/CHANGELOG.md)
- [Commits](json5/json5@v2.2.0...v2.2.3)

Updates `babel-loader` from 8.2.2 to 8.3.0
- [Release notes](https://github.com/babel/babel-loader/releases)
- [Changelog](https://github.com/babel/babel-loader/blob/main/CHANGELOG.md)
- [Commits](babel/babel-loader@v8.2.2...v8.3.0)

---
updated-dependencies:
- dependency-name: json5
  dependency-type: indirect
- dependency-name: babel-loader
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

demo/package-lock.json

@@ -14,7 +14,7 @@
     "@babel/preset-env": "^7.13.15",
     "@babel/preset-react": "^7.13.13",
     "@fortawesome/fontawesome-free": "^5.15.3",
-    "babel-loader": "^8.2.2",
+    "babel-loader": "^8.3.0",
     "bulma": "^0.9.2",
     "bulma-checkradio": "^1.1.1",
     "bulma-switch": "^2.0.0",