Bump vite from 5.4.10 to 5.4.12 in /playground

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 5.4.10 to 5.4.12.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/v5.4.12/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v5.4.12/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-type: direct:development
...

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

playground/package.json

@@ -10,7 +10,7 @@
   },
   "devDependencies": {
     "typescript": "~5.6.2",
-    "vite": "^5.4.10"
+    "vite": "^5.4.12"
   },
   "dependencies": {
     "@preact/signals": "^1.3.0",