Bump aws-config from 0.55.3 to 0.56.1

Bumps [aws-config](https://github.com/awslabs/smithy-rs) from 0.55.3 to 0.56.1.
- [Release notes](https://github.com/awslabs/smithy-rs/releases)
- [Changelog](https://github.com/awslabs/smithy-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/awslabs/smithy-rs/commits)

---
updated-dependencies:
- dependency-name: aws-config
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>