chore(deps): bump next from 14.2.23 to 15.1.4

Bumps [next](https://github.com/vercel/next.js) from 14.2.23 to 15.1.4.
- [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/v14.2.23...v15.1.4)

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

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

package.json

@@ -32,7 +32,7 @@
         "framer-motion": "^11.9.0",
         "mdast-util-to-string": "^4.0.0",
         "mdx-annotations": "^0.1.4",
-        "next": "^14.2.13",
+        "next": "^15.1.4",
         "next-themes": "^0.3.0",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",