Update module github.com/aws/aws-sdk-go to v1.38.21

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/aws/aws-sdk-go	require	patch	v1.38.17 -> v1.38.21

---

Release Notes

aws/aws-sdk-go

v1.38.21

Compare Source

===

Service Client Updates

• service/dms: Updates service API, documentation, waiters, and paginators
  • AWS DMS added support of TLS for Kafka endpoint. Added Describe endpoint setting API for DMS endpoints.
• service/sts: Updates service API
  • STS now supports assume role with Web Identity using JWT token length upto 20000 characters

v1.38.20

Compare Source

===

Service Client Updates

• service/codestar-connections: Updates service API and documentation
• service/config: Updates service API and documentation
• service/mediaconnect: Updates service API, documentation, and waiters
• service/route53: Updates service documentation
  • Documentation updates for route53

v1.38.19

Compare Source

===

Service Client Updates

• service/comprehendmedical: Updates service API and documentation
• service/lightsail: Updates service documentation
  • Documentation updates for Amazon Lightsail.
• service/rds: Updates service API, documentation, waiters, paginators, and examples
  • Clarify that enabling or disabling automated backups causes a brief downtime, not an outage.
• service/redshift: Updates service API and documentation
  • Added support to enable AQUA in Amazon Redshift clusters.
• service/sts: Updates service API and documentation
  • This release adds the SourceIdentity parameter that can be set when assuming a role.

v1.38.18

Compare Source

===

Service Client Updates

• service/codebuild: Updates service API and documentation
  • AWS CodeBuild now allows you to set the access permissions for build artifacts, project artifacts, and log files that are uploaded to an Amazon S3 bucket that is owned by another account.
• service/fsx: Updates service API, documentation, and examples

---

Configuration

📅 Schedule: "every weekend" in timezone Asia/Tokyo.

🚦 Automerge: Disabled due to failing status checks.

♻️ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box.

---

This PR has been generated by WhiteSource Renovate. View repository job log here.