Bump next from 9.5.3 to 9.5.4 in /frontend

Bumps [next](https://github.com/vercel/next.js) from 9.5.3 to 9.5.4.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v9.5.3...v9.5.4)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

frontend/package.json

@@ -27,7 +27,7 @@
   "dependencies": {
     "@tailwindui/react": "^0.1.1",
     "heroicons": "^0.4.2",
-    "next": "^9.5.3",
+    "next": "^9.5.4",
     "preact": "^10.5.5",
     "preact-render-to-string": "^5.1.11",
     "react": "github:preact-compat/react#1.0.0",