chore(deps): bump react-router-dom from 6.13.0 to 6.21.2 in /frontend

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 6.13.0 to 6.21.2.
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/main/packages/react-router-dom/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router-dom@6.21.2/packages/react-router-dom)

---
updated-dependencies:
- dependency-name: react-router-dom
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

frontend/package-lock.json

@@ -33,7 +33,7 @@
     "react-datepicker": "^4.8.0",
     "react-dom": "^17.0.2",
     "react-loading-overlay-ts": "^2.0.0",
-    "react-router-dom": "^6.13.0",
+    "react-router-dom": "^6.21.2",
     "react-spinners": "^0.13.7",
     "react-google-charts": "^4.0.0"
   }