build(deps): bump next in /client

Bumps [next](https://github.com/vercel/next.js) from 15.0.4-canary.11 to 15.0.4-canary.13.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.0.4-canary.11...v15.0.4-canary.13)

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

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

client/package.json

@@ -38,7 +38,7 @@
         "ky": "^1.7.2",
         "lucia": "^3.2.2",
         "lucide-react": "^0.460.0",
-        "next": "15.0.4-canary.11",
+        "next": "15.0.4-canary.13",
         "next-themes": "^0.4.3",
         "react": "19.0.0-rc.1",
         "react-cropper": "^2.3.3",