chore(deps): bump next-auth in /packages/next-auth-sample

Bumps [next-auth](https://github.com/nextauthjs/next-auth) from 5.0.0-beta.29 to 5.0.0-beta.30.
- [Release notes](https://github.com/nextauthjs/next-auth/releases)
- [Commits](https://github.com/nextauthjs/next-auth/compare/next-auth@5.0.0-beta.29...next-auth@5.0.0-beta.30)

---
updated-dependencies:
- dependency-name: next-auth
  dependency-version: 5.0.0-beta.30
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

packages/next-auth-sample/package.json

@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "next": "^15.4.7",
-    "next-auth": "5.0.0-beta.29",
+    "next-auth": "5.0.0-beta.30",
     "react": "^19.0.0",
     "react-dom": "^19.0.0"
   },