build(deps): bump next from 15.2.2 to 15.2.3 in /playground/frontend (#920)

Bumps [next](https://github.com/vercel/next.js) from 15.2.2 to 15.2.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.2.2...v15.2.3)

---
updated-dependencies:
- dependency-name: next
  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]

playground/frontend/package.json

@@ -16,7 +16,7 @@
 		"@tiptap/react": "^2.11.5",
 		"@tiptap/starter-kit": "^2.11.5",
 		"jwt-encode": "^1.0.1",
-		"next": "15.2.2",
+		"next": "15.2.3",
 		"react": "^19.0.0",
 		"react-dom": "^19.0.0"
 	},