Bump next from 15.1.3 to 15.4.7

Bumps [next](https://github.com/vercel/next.js) from 15.1.3 to 15.4.7.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.1.3...v15.4.7)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.4.7
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package.json

@@ -21,7 +21,7 @@
     "lucide-react": "^0.523.0",
     "markdown-to-jsx": "^7.7.2",
     "motion": "^11.17.0",
-    "next": "15.2.4",
+    "next": "15.4.7",
     "next-plausible": "^3.12.4",
     "node-fetch": "^3.3.2",
     "pngjs": "6.0.0",