Bump react-router-dom from 6.20.1 to 6.22.0 in /src/frontend

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 6.20.1 to 6.22.0.
- [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@6.22.0/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>

src/frontend/package.json

@@ -25,7 +25,7 @@
     "react": "18.2.0",
     "react-datepicker": "4.24.0",
     "react-dom": "18.2.0",
-    "react-router-dom": "6.20.1",
+    "react-router-dom": "6.22.0",
     "sass": "1.69.5"
   },
   "devDependencies": {