(aws-ecs-patterns): ApplicationLoadBalancedFargateService - Add AAAA DNS record for IPV6 Support

[rcollette]

Include AAAA DNS record in Route53

Use Case

We have government customers that are requiring IPV6 functionality from our services. The ALB fully qualified host names being referenced by A records already have 'dualstack' in them, which indicates an intent to support IPV6, but the AAAA record to publish the actual IPV6 address is not created by this CDK construct.

Proposed Solution

Add a configuration option that results in the creation of both A and AAAA records.

record_type: ApplicationLoadBalancedServiceRecordType.ALIAS_IPV4_IPV6

• [ ] :wave: I may be able to implement this feature request
• [ ] :warning: This feature might incur a breaking change

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This is a :rocket: Feature Request

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[rcollette]

keep