chore(deps): bump next from 15.1.1 to 15.1.2 in /examples/nextjs-example

Bumps [next](https://github.com/vercel/next.js) from 15.1.1 to 15.1.2.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.1.1...v15.1.2)

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

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

examples/nextjs-example/package.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "@urql/core": "^5.1.0",
     "@urql/exchange-auth": "^2.2.0",
-    "next": "15.1.1",
+    "next": "15.1.2",
     "react": "^19.0.0",
     "react-dom": "^19.0.0"
   },