chore(deps): bump aws-credential-types from 1.2.5 to 1.2.6 in /native (#2275)

Bumps [aws-credential-types](https://github.com/smithy-lang/smithy-rs) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/smithy-lang/smithy-rs/releases)
- [Changelog](https://github.com/smithy-lang/smithy-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/smithy-lang/smithy-rs/commits)

---
updated-dependencies:
- dependency-name: aws-credential-types
  dependency-version: 1.2.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

native/Cargo.lock

@@ -52,7 +52,7 @@ thiserror = "2"
 object_store = { version = "0.12.3", features = ["gcp", "azure", "aws", "http"] }
 url = "2.2"
 aws-config = "1.6.3"
-aws-credential-types = "1.2.5"
+aws-credential-types = "1.2.6"
 
 [profile.release]
 debug = true