v0.4.0

Change log

Changed

• Update aws-sdk-go to v1.34.6 to enable using new environment variables that AWS supports, such as
  AWS_ROLE_ARN which is required for EKS.
  PR cyberark/summon-aws-secrets#37
• Upgraded build/test images to use Golang 1.13 instead of 1.11.
  cyberark/summon-aws-secrets#27

Fixed

• Made installer script more robust to target environments.
  cyberark/summon-aws-secrets#16