Upgrade fog-aws to v3.14.0

This upgrade adds an option to control IAM credential
refresh intervals
that is useful in situations
described on issue
https://gitlab.com/gitlab-org/gitlab/-/issues/350118

- Diff: https://github.com/fog/fog-aws/compare/v3.12.0..v3.14.0
- Gem diff: https://my.diffend.io/gems/fog-aws/3.12.0/3.14.0

Changelog: fixed