Bump react-router-dom from 6.6.2 to 6.8.2 in /ui

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 6.6.2 to 6.8.2.
- [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@6.8.2/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>

ui/package.json

@@ -15,7 +15,7 @@
     "react": "^18.2.0",
     "react-archer": "4.1.0",
     "react-dom": "^18.2.0",
-    "react-router-dom": "^6.6.2",
+    "react-router-dom": "^6.8.2",
     "react-syntax-highlighter": "^15.5.0",
     "ulidx": "^0.5.0"
   },