X-Amz-Date is not being updated

[fawzisf]

The same date is used over multiple requests, this causes the clock to be way off sync over a long period of time. which is cause the server to reject the upload with the following error : 403 -Invalid according to Policy: Policy expired. i suggest turning the date into a function that is called on each request.

[madhu131313]

anyone facing the issue, let me know. I will fix it in my aws-s3-pro plugin and will publish.
https://github.com/madhu131313/aws-s3