PHZ for Sagemaker API not correct

[sandrich]

Describe the bug
When deploying SageMaker VPC endpoints, the wrong Route53 PHZ are created causing the error

App Creation failed with exception: Could not connect to the endpoint URL: "https://api.sagemaker.eu-west-1.amazonaws.com/"

The change was introduced in e8f3d71

To Reproduce
Define VPC Endpoint for sagemaker.api and sagemaker.runtime

This creates PHZ for api.sagemaker.eu-west-1.sagemaker.aws and runtime.sagemaker.eu-west-1.sagemaker.aws

Expected behavior
It should create PHZ for api.sagemaker.eu-west-1.amazonaws.com and runtime.sagemaker.eu-west-1.amazonaws.com as defined in https://docs.aws.amazon.com/general/latest/gr/sagemaker.html

Please complete the following information about the solution:

• Version: v1.11.0
• Region: eu-west-1
• Was the solution modified from the version published on this repository?
• If the answer to the previous question was yes, are the changes available on GitHub?
• Have you checked your service quotas for the services this solution uses?
• Were there any errors in the CloudWatch Logs?

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Additional context
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