Bump vite from 5.2.11 to 6.4.2 in /site

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 5.2.11 to 6.4.2.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/v6.4.2/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v6.4.2/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 6.4.2
  dependency-type: direct:development
...

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

Author: dependabot[bot]

site/package.json

@@ -104,7 +104,7 @@
     "stylelint-config-recommended": "^14.0.0",
     "stylelint-config-sass-guidelines": "^11.1.0",
     "tsx": "^4.9.3",
-    "vite": "^5.2.11",
+    "vite": "^6.4.2",
     "vite-plugin-virtual": "^0.3.0",
     "yaml": "^2.4.2"
   },