Bump react-router and react-router-dom in /cmd/kueueviz/frontend (#8481)

Bumps [react-router](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router) to 7.12.0 and updates ancestor dependency [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom). These dependencies need to be updated together.


Updates `react-router` from 7.9.6 to 7.12.0
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/main/packages/react-router/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/[email protected]/packages/react-router)

Updates `react-router-dom` from 7.9.6 to 7.12.0
- [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/[email protected]/packages/react-router-dom)

---
updated-dependencies:
- dependency-name: react-router
  dependency-version: 7.12.0
  dependency-type: indirect
- dependency-name: react-router-dom
  dependency-version: 7.12.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

cmd/kueueviz/frontend/package-lock.json

@@ -22,7 +22,7 @@
     "react": "^19.2.1",
     "react-ace": "^14.0.1",
     "react-dom": "^19.2.1",
-    "react-router-dom": "^7.9.6",
+    "react-router-dom": "^7.12.0",
     "react-toastify": "^11.0.5",
     "serve": "^14.2.5"
   },