Update rest calls for s3 to get things like README to use new TLS

> As of June 28, 2023, we have begun deploying updates to the TLS configuration for all AWS API endpoints to a minimum of version TLS 1.2 even if you still have connections using these versions. These deployments will complete by no later than December 31, 2023. This update removes the ability to use TLS versions 1.0 and 1.1 with all AWS APIs in all AWS Regions [1]. 
