Bump next from 15.5.9 to 15.5.12

Bumps [next](https://github.com/vercel/next.js) from 15.5.9 to 15.5.12.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/compare/v15.5.9...v15.5.12)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.12
  dependency-type: direct:production
...

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

package.json

@@ -98,7 +98,7 @@
         "lucide-react": "0.562.0",
         "maxmind": "5.0.1",
         "moment": "2.30.1",
-        "next": "15.5.9",
+        "next": "15.5.12",
         "next-intl": "4.7.0",
         "next-themes": "0.4.6",
         "nextjs-toploader": "3.9.17",