Rob Staveley (Tom)

Unike boto3, the boto library needs to reference AWS_CONTAINER_CREDENTIALS_RELATIVE_URI for credentials in ECS. This adds support.

There is something nice to do with `npiperelay`, if you are using the native OpenSSH ssh-agent in Windows 10. Add this to `~/.bash_profile` in WSL2 or WSL: ```bash export SSH_AUTH_SOCK=/tmp/ssh-agent-$$.tmp...