fix(route53-targets): deprecated method for dns name is used in userpool domain target (under feature flag)

[go-to-k]

WIP: waiting for the PR to be merged.

Reason for this change

The PR created a new method to get CloudFront DNS name in Cognito user pool domain. A custom resource is created in the old method, but is not in the new method.

However, the UserPoolDomainTarget in the route53-targets module continues to use the old method. So we should change to use the new method.

Description of changes

The bind method in the UserPoolDomainTarget implements IAliasRecordTarget interface, so a new method instead of the bind cannot be created.

Therefore, I take it using a feature flag.

Description of how you validated changes

Both unit and integ tests.

Checklist

• [x] 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

[aws-cdk-automation]

This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 1b921ca1f4281ccf5a6184a603f9c31892ba97cb
• Result: FAILED
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