chore(ec2): add interface endpoint for Redshift Serverless

[badmintoncryer]

Issue # (if applicable)

None.

Reason for this change

Amazon Redshift Serverless supports AWS PrivateLink at 8/30.

https://aws.amazon.com/jp/about-aws/whats-new/2024/08/amazon-redshift-serverless-aws-privatelink/

Description of changes

I've added redshift-serverless and redshift-serverless-fips.

Description of how you validated changes

I checked latest endpoint information.

$ aws ec2 describe-vpc-endpoint-services --filters Name=service-type,Values=Interface Name=owner,Values=amazon --region us-east-1 --query ServiceNames | grep redshift
    "com.amazonaws.us-east-1.redshift",
    "com.amazonaws.us-east-1.redshift-data",
    "com.amazonaws.us-east-1.redshift-data-fips",
    "com.amazonaws.us-east-1.redshift-fips",
    "com.amazonaws.us-east-1.redshift-serverless", // newly added
    "com.amazonaws.us-east-1.redshift-serverless-fips", // newly added

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 5613c97
• Result: SUCCEEDED
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