[AWS] support AWS Pod Identity authentication - AWS SDK bump

[balonik]

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Use Cases

To be able to use AWS Pod Identity authentication method for vector pods running in AWS.

ref:
https://docs.aws.amazon.com/eks/latest/userguide/pod-id-minimum-sdk.html
https://github.com/awslabs/aws-sdk-rust/releases/tag/release-2024-03-13

Attempted Solutions

N/A - current AWS SDK version used in Vector does not support Pod Identity.

Proposal

Bump AWS SDK versions - aws_config at least 1.1.8 which adds Pod Identity credentials provider.

References

No response

Version

0.38.0