route53: wrong template generation when routing traffic to an Amazon VPC interface endpoint

### Expected Behavior

A HostedZone must be created and two RecordSets/ARecords within it.

### Current Behavior

Error by deployment:

"Template format error: Every Value member must be a string"

### Additional Information/Context

2.43.1
[10.0.0,11.0.0)
2.17.280
1.12.309

```
JavaCode:

context.basics.s3Endpoint = InterfaceVpcEndpoint.Builder
.create(this, id4res(stage, "s3endpoint"))
.vpc(context.basics.vpc)
.service(InterfaceVpcEndpointAwsService.S3)
.subnets(SubnetSelection.builder()
.subnetType(SubnetType.PUBLIC)
.build())
.securityGroups(List.of(context.basics.sg))
.privateDnsEnabled(false)
.build();

context.basics.hostedZone = HostedZone.Builder.create(this, id4res(stage, "myzone-hz"))
.zoneName("myzone.aws")
.comment("My Hosted Zone")
.vpcs(List.of(context.basics.vpc))
.build();

ARecord.Builder.create(this, id4res(stage, "myzone-rs1"))
.comment("S3 Endpoint - default")
.zone(context.basics.hostedZone)
.recordName(context.basics.hostedZone.getZoneName())
.target(RecordTarget.fromAlias(new InterfaceVpcEndpointTarget(context.basics.s3Endpoint)))
.build();
```

### CDK CLI Version

2.43.1

### Framework Version

_No response_

### Node.js Version

Node.js v14.16.0

### OS

Windows

### Language

Java

### Language Version

_No response_

### Other information

_No response_

Start by reproducing the reported Java configuration with InterfaceVpcEndpoint, HostedZone, and ARecord, then inspect the generated template around the Route 53 alias target. Verify the generated HostedZone and two RecordSets/ARecords, and confirm deployment no longer reports that every Value member must be a string.

Written by the indexing model from the issue text.