Bump react-router-dom from 6.11.2 to 6.12.0 in /client

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 6.11.2 to 6.12.0.
- [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/react-router-dom@6.12.0/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>

client/package.json

@@ -17,7 +17,7 @@
     "qrcode.react": "^3.1.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
-    "react-router-dom": "^6.11.2",
+    "react-router-dom": "^6.12.0",
     "react-transition-group": "^4.4.5",
     "sass": "^1.62.1",
     "socket.io-client": "^4.6.2",