Bump next from 13.4.8 to 13.4.9

Bumps [next](https://github.com/vercel/next.js) from 13.4.8 to 13.4.9.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v13.4.8...v13.4.9)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -29,7 +29,7 @@
   },
   "dependencies": {
     "chart.js": "^3.9.1",
-    "next": "^13.4.8",
+    "next": "^13.4.9",
     "react": "^18.2.0",
     "react-chartjs-2": "^4.3.1",
     "react-dom": "^18.2.0"