Figure out S3 authentication in local Windows development

[jrhemstad]

In our Windows containers, we would like to be able to use sccache and share the same S3 bucket used by CI.

In our Linux devcontainers, this works via custom AWS/GitHub authentication logic written by @trxcllnt. These scripts can be found here: https://github.com/rapidsai/devcontainers/tree/91d2f91a2f3328cd7af39a5fcfbacc933bbaaa1b/features/src/utils/opt/devcontainer/bin/vault/s3/creds

These are currently written in bash and so will not be directly usable in Windows.

I see 3 possible options to make the AWS/S3 authentication work on Windows:

1. Replicate the bash scripts in powershell
   • This isn't ideal as it would be redundant and the two sets of scripts would diverge over time
2. Port the bash scripts to a language that will work in both Windows/Linux (Python? Javascript?)
   • In theory this should work?
3. Find a way to invoke the existing bash scripts in a WSL environment on a Windows runner
   • In theory, we should be able to get the credentials in WSL and use them in the native Windows environment?