chore(deps): bump next from 14.2.25 to 14.2.26 in /demo (#1360)

Bumps [next](https://github.com/vercel/next.js) from 14.2.25 to 14.2.26.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.2.25...v14.2.26)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 14.2.26
  dependency-type: direct:production
...

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

Author: dependabot[bot]

demo/package-lock.json

@@ -14,7 +14,7 @@
     "lodash.clonedeep": "^4.5.0",
     "lodash.samplesize": "^4.2.0",
     "lodash.throttle": "^4.1.1",
-    "next": "^14.2.25",
+    "next": "^14.2.26",
     "react": "17.0.2",
     "react-dom": "17.0.2"
   },