bump smithy-rs to 2025-11-19 release (#1383)

<!--

IMPORTANT:

> Making changes to examples? 

Be sure to make example changes in the awsdocs/aws-doc-sdk-examples
repository (https://github.com/awsdocs/aws-doc-sdk-examples).
The examples in aws-sdk-rust are copied from the `rust_dev_preview/`
directory in that repository.


> Making changes to code?

All the code in aws-sdk-rust is auto-generated by smithy-rs
(https://github.com/awslabs/smithy-rs).
Changes to code need to be made in that repository.

-->


## Motivation and Context
<!-- Why is this change required? What problem does it solve? -->
<!-- If it fixes an open issue, please link to the issue here -->

Bump `smithy-rs` to `release-2025-11-19` to pickup `aws-config` release.

By submitting this pull request, I confirm that you can use, modify,
copy, and redistribute this contribution, under the terms of your
choice.