chore(deps): bump next in /tests/smoke/fixtures/next-12.0.3

Bumps [next](https://github.com/vercel/next.js) from 12.0.3 to 14.2.15.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v12.0.3...v14.2.15)

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

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

tests/smoke/fixtures/next-12.0.3/package.json

@@ -6,13 +6,13 @@
     "build": "next build"
   },
   "dependencies": {
-    "next": "12.0.3",
+    "next": "14.2.15",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"
   },
   "test": {
     "dependencies": {
-      "next": "12.0.3"
+      "next": "14.2.15"
     }
   }
 }