chore(deps): bump next in the npm_and_yarn group across 1 directory (#6865)

Bumps the npm_and_yarn group with 1 update in the / directory: [next](https://github.com/vercel/next.js).


Updates `next` 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](https://github.com/vercel/next.js/compare/v14.2.25...v14.2.26)

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

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

admin/package.json

@@ -29,7 +29,7 @@
     "lucide-react": "^0.469.0",
     "mobx": "^6.12.0",
     "mobx-react": "^9.1.1",
-    "next": "^14.2.25",
+    "next": "^14.2.26",
     "next-themes": "^0.2.1",
     "postcss": "^8.4.38",
     "react": "^18.3.1",