Allow all origins for presigned URL

One of the biggest advantages of presigned URL for files is to allow uploading files directly from the client / browser. The client could be the Firefly SPA (React spectrum) or a 3rd party site. However, it is currently not possible to make `fetch` requests from client-side javascript to the presigned URL (on storage CDN: https://firefly.azureedge.net/) due to CORS blocking.

```
const response = await fetch(
url,
{
method: 'PUT',
body: file,
headers: {
'Content-Type': 'image/png'
}
}
)
```

### Expected Behaviour

The file should be uploaded to the presigned URL.

### Actual Behaviour

```
Access to fetch at 'https://firefly.azureedge.net/...' from origin 'https://my-namespace.adobeio-static.net' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
```