Upgrade the aws golang SDK to 1.42.27 to add the new options for
configuring S3 dualstack endpoints.
Signed-off-by: Adam Kaplan <adam.kaplan@redhat.com>
Updated to latest version of go aws sdk.
Use vendored sub pakages within aws sdk.
Adds missing vendor packages for letsencrypt
Fixes#1832
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)