Bump react-day-picker from 8.8.1 to 8.9.1 in /frontend (#964)

Bumps [react-day-picker](https://github.com/gpbl/react-day-picker) from 8.8.1 to 8.9.1.
- [Release notes](https://github.com/gpbl/react-day-picker/releases)
- [Commits](gpbl/react-day-picker@v8.8.1...v8.9.1)

---
updated-dependencies:
- dependency-name: react-day-picker
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

frontend/package.json

@@ -49,7 +49,7 @@
     "query-string": "^8.1.0",
     "react": "^18.2.0",
     "react-ace": "^10.1.0",
-    "react-day-picker": "^8.8.1",
+    "react-day-picker": "^8.9.1",
     "react-dom": "^18.2.0",
     "react-dropzone": "^14.2.2",
     "react-markdown": "^9.0.0",