build(deps): bump next from 15.5.7 to 15.5.9 in /src/packages

Bumps [next](https://github.com/vercel/next.js) from 15.5.7 to 15.5.9.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.7...v15.5.9)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.9
  dependency-type: direct:production
...

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

Author: dependabot[bot]

src/packages/next/package.json

@@ -78,7 +78,7 @@
     "lodash": "^4.17.21",
     "lru-cache": "^7.18.3",
     "ms": "2.1.2",
-    "next": "15.5.7",
+    "next": "15.5.9",
     "next-rest-framework": "6.0.0-beta.4",
     "next-translate": "^2.6.2",
     "password-hash": "^1.2.2",