Bump json5, react-scripts and loader-utils in /polling-app-client

Bumps [json5](https://github.com/json5/json5) to 1.0.2 and updates ancestor dependencies [json5](https://github.com/json5/json5), [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts) and [loader-utils](https://github.com/webpack/loader-utils). These dependencies need to be updated together.


Updates `json5` from 0.5.1 to 1.0.2
- [Release notes](https://github.com/json5/json5/releases)
- [Changelog](https://github.com/json5/json5/blob/main/CHANGELOG.md)
- [Commits](json5/json5@v0.5.1...v1.0.2)

Updates `react-scripts` from 1.1.5 to 5.0.1
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/main/CHANGELOG-1.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/react-scripts@5.0.1/packages/react-scripts)

Updates `loader-utils` from 1.1.0 to 1.4.2
- [Release notes](https://github.com/webpack/loader-utils/releases)
- [Changelog](https://github.com/webpack/loader-utils/blob/v1.4.2/CHANGELOG.md)
- [Commits](webpack/loader-utils@v1.1.0...v1.4.2)

---
updated-dependencies:
- dependency-name: json5
  dependency-type: indirect
- dependency-name: react-scripts
  dependency-type: direct:production
- dependency-name: loader-utils
  dependency-type: indirect
...

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

Author: dependabot[bot]

polling-app-client/package-lock.json

@@ -7,7 +7,7 @@
     "react": "^16.5.2",
     "react-dom": "^16.5.2",
     "react-router-dom": "^4.3.1",
-    "react-scripts": "1.1.5"
+    "react-scripts": "5.0.1"
   },
   "scripts": {
     "start": "react-app-rewired start",