Bump vite from 6.3.5 to 6.4.1 in /src-admin

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 6.3.5 to 6.4.1.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/create-vite@6.4.1/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 6.4.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

src-admin/package.json

@@ -28,7 +28,7 @@
         "react-dom": "^18.3.1",
         "react-leaflet": "^4.2.1",
         "react-refresh": "^0.17.0",
-        "vite": "6.3.5",
+        "vite": "6.4.1",
         "vite-plugin-commonjs": "^0.10.4",
         "vite-plugin-svgr": "^4.3.0",
         "vite-tsconfig-paths": "^5.1.4"