feat(apigatewayv2): add dualstack support to domain name (aws#34111)

### Reason for this change

This builds on aws#34054. Apparently for a domain name to have IPv4 and IPv6
support, the `AWS::ApiGatewayV2::DomainName.DomainNameConfiguration` also
needs to set `IpAddressType`. This is distinct from the settings on the
`AWS::ApiGatewayV2::API` itself.



### Description of changes

This adds the [`ipAddressType` property][ipaddresstype] for `DomainNameConfiguration`.

[ipaddresstype]: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigatewayv2-domainname-domainnameconfiguration.html#cfn-apigatewayv2-domainname-domainnameconfiguration-ipaddresstype



### Describe any new or updated permissions being added

N/A


### Description of how you validated changes

Unit & Integration tests have been added. These are the first tests for `DomainName`
for HTTP APIs and leverage the tooling for custom domains in integ tests.

### Checklist
- [X] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

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

Author: laurelmay

packages/@aws-cdk-testing/framework-integ/test/aws-apigatewayv2/test/http/integ.api-domain-name.js.snapshot/aws-cdk-aws-apigatewayv2-domain-name.assets.json

@@ -0,0 +1,109 @@
+{
+ "Resources": {
+  "Certificate4E7ABB08": {
+   "Type": "AWS::CertificateManager::Certificate",
+   "Properties": {
+    "DomainName": "*.example.com",
+    "DomainValidationOptions": [
+     {
+      "DomainName": "*.example.com",
+      "HostedZoneId": "Z23ABC4XYZL05B"
+     }
+    ],
+    "Tags": [
+     {
+      "Key": "Name",
+      "Value": "This is a test name"
+     }
+    ],
+    "ValidationMethod": "DNS"
+   }
+  },
+  "DomainNameEC95A6E9": {
+   "Type": "AWS::ApiGatewayV2::DomainName",
+   "Properties": {
+    "DomainName": "*.example.com",
+    "DomainNameConfigurations": [
+     {
+      "CertificateArn": {
+       "Ref": "Certificate4E7ABB08"
+      },
+      "EndpointType": "REGIONAL",
+      "IpAddressType": "dualstack"
+     }
+    ]
+   }
+  },
+  "HttpApiF5A9A8A7": {
+   "Type": "AWS::ApiGatewayV2::Api",
+   "Properties": {
+    "Name": "HttpApi",
+    "ProtocolType": "HTTP",
+    "RouteSelectionExpression": "${request.method} ${request.path}"
+   }
+  },
+  "HttpApiDefaultStage3EEB07D6": {
+   "Type": "AWS::ApiGatewayV2::Stage",
+   "Properties": {
+    "ApiId": {
+     "Ref": "HttpApiF5A9A8A7"
+    },
+    "AutoDeploy": true,
+    "StageName": "$default"
+   },
+   "DependsOn": [
+    "DomainNameEC95A6E9"
+   ]
+  },
+  "HttpApiDefaultStageawscdkawsapigatewayv2domainnameDomainNameundefined0C10CF26": {
+   "Type": "AWS::ApiGatewayV2::ApiMapping",
+   "Properties": {
+    "ApiId": {
+     "Ref": "HttpApiF5A9A8A7"
+    },
+    "DomainName": {
+     "Ref": "DomainNameEC95A6E9"
+    },
+    "Stage": "$default"
+   },
+   "DependsOn": [
+    "DomainNameEC95A6E9",
+    "HttpApiDefaultStage3EEB07D6"
+   ]
+  }
+ },
+ "Parameters": {
+  "BootstrapVersion": {
+   "Type": "AWS::SSM::Parameter::Value<String>",
+   "Default": "/cdk-bootstrap/hnb659fds/version",
+   "Description": "Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]"
+  }
+ },
+ "Rules": {
+  "CheckBootstrapVersion": {
+   "Assertions": [
+    {
+     "Assert": {
+      "Fn::Not": [
+       {
+        "Fn::Contains": [
+         [
+          "1",
+          "2",
+          "3",
+          "4",
+          "5"
+         ],
+         {
+          "Ref": "BootstrapVersion"
+         }
+        ]
+       }
+      ]
+     },
+     "AssertDescription": "CDK bootstrap stack version 6 required. Please run 'cdk bootstrap' with a recent version of the CDK CLI."
+    }
+   ]
+  }
+ }
+}