[Feature]: Support S3 endpoint with no prefix (http/https)

[gweaverbiodev]

Description

Hi,

We host our own internal S3 service in k8s that mimics the S3 interface.

To properly route to this service, we need to provide the endpoint without http://, else we will hit DNS lookup issues.

Would it be possible to allow such endpoints as it seems there is some endpoint validation that is failing the S3 config/connectivity check on service startup.

Expected Use Cases

No response

Requested Changes in public API

Allow S3 endpoints without http/https.

[dimas-b]

Nessie uses AWS SDK for connections to S3 services.

@gmweaver : Is your S3 implementation compatible with the AWS SDK client? If yes, please provide information on how to configure the AWS SDK in that case.