enhanced authentication error logging for AWS components

## Describe the feature
The coming v1.8 documentation release for AWS components would have better explanation about the correct usage of credentials versus IAM policies and roles.
This issues suggests adding a higher level of log verbosity to all authentication operations done by the AWS component. This might assist users to better understand what went wrong in case they didn't follow correctly through the new documentation

## Release Note

RELEASE NOTE: ADD enhanced authentication error logging for AWS components

The issue names no files or tests. Start by inventorying the AWS components and their existing authentication logging, then compare the credentials and IAM guidance in the v1.8 documentation. Done means the requested higher-verbosity authentication diagnostics are consistently covered across AWS components and the relevant checks pass.

Written by the indexing model from the issue text.