Bump next from 15.5.6 to 15.5.7 (#14)

Bumps [next](https://github.com/vercel/next.js) from 15.5.6 to 15.5.7.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.5.6...v15.5.7)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.5.7
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -12,7 +12,7 @@
     "@netlify/functions": "^4.2.5",
     "@netlify/plugin-nextjs": "^5.13.0",
     "framer-motion": "^12.23.12",
-    "next": "^15.5.2",
+    "next": "^15.5.7",
     "nodemailer": "^7.0.6",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",