Upgrade fog-aws to v3.7.0
This adds multi-threaded support for copying files (not activated yet) and fixes some an
issue with AssumeRoleWithWebIdentity
that may resolve an issue with AWS
EKS (gitlab-org/charts/gitlab#1832 (closed)).
CHANGELOG: https://github.com/fog/fog-aws/blob/master/CHANGELOG.md
Edited by Stan Hu