Bump ejs and react-scripts in /frontend

Bumps [ejs](https://github.com/mde/ejs) to 3.1.9 and updates ancestor dependency [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts). These dependencies need to be updated together.


Updates `ejs` from 2.7.4 to 3.1.9
- [Release notes](https://github.com/mde/ejs/releases)
- [Commits](https://github.com/mde/ejs/compare/v2.7.4...v3.1.9)

Updates `react-scripts` from 4.0.3 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-4.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/react-scripts@5.0.1/packages/react-scripts)

---
updated-dependencies:
- dependency-name: ejs
  dependency-type: indirect
- dependency-name: react-scripts
  dependency-type: direct:production
...

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

frontend/package.json

@@ -9,7 +9,7 @@
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-json-view": "^1.21.3",
-    "react-scripts": "4.0.3",
+    "react-scripts": "5.0.1",
     "web-vitals": "^1.0.1"
   },
   "proxy": "http://localhost:8080",