Update fog-aws to v3.25.0

What does this MR do and why?

This adds support for EKS Pod Identity and disables S3 Signature v4 streaming by default. This eliminates the need to specify enable_signature_v4_streaming: false for third-party S3 providers.

Diff: https://my.diffend.io/gems/fog-aws/3.24.0/3.25.0