Bump next from 15.1.3 to 15.1.6

Bumps [next](https://github.com/vercel/next.js) from 15.1.3 to 15.1.6.
- [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...v15.1.6)

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

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

Author: dependabot[bot]

package-lock.json

@@ -31,7 +31,7 @@
     "fs": "^0.0.1-security",
     "isomorphic-git": "^1.29.0",
     "js-yaml": "^4.1.0",
-    "next": "^15.1.3",
+    "next": "^15.1.6",
     "next-auth": "^4.24.11",
     "node-fetch": "^3.3.2",
     "react": "18.3.1",