Bump next from 15.0.3 to 15.1.3

Bumps [next](https://github.com/vercel/next.js) from 15.0.3 to 15.1.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.0.3...v15.1.3)

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

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

package.json

@@ -17,7 +17,7 @@
     "dompurify": "^3.2.2",
     "katex": "^0.16.11",
     "lucide-react": "^0.462.0",
-    "next": "15.0.3",
+    "next": "15.1.3",
     "next-sitemap": "^4.2.3",
     "nextra": "^3.2.4",
     "nextra-theme-docs": "^3.2.4",