aws_servicediscovery: PublicDnsNamespace NS records

### Describe the bug

When creating a public Service Discovery namespace, the nameserver records are not added to the hosted zone. There doesn't appear to be a way to get the hosted zone ID created from the public Service Discovery namespace. For the example below, NS records are not added to the hosted zone for "sub2.sub1.mydomain.com". A hosted zone is added for "sub3.sub2.sub1.mydomain.com" but the NS records from this HZ are not linked to the HZ for "sub2.sub1.mydomain.com".

### Expected Behavior

NS record(s) for sub3.sub2.sub1.mydomain.com is added to HZ for sub2.sub1.mydomain.com

### Current Behavior

NS records not added, public Service Discovery namespace fails DNS look-ups

### Reproduction Steps

```python

#!/usr/bin/env python3
from constructs import Construct
from aws_cdk import App, Environment, Stack, CfnOutput
from aws_cdk import (aws_servicediscovery as sd)

class SampleStack(Stack):
def __init__(self, scope: Construct, id: str, **kwargs) -> None:
super().__init__(scope, id, **kwargs)

# This FQDN is a hosted zone in the target account
fqdn = "sub2.sub1.mydomain.com"
service_discovery_subdomain = "sub3"

# Does not add NS records to hosted zone $fqdn
service_discovery = sd.PublicDnsNamespace(
self,
"service-discovery",
name=f"{service_discovery_subdomain}.{fqdn}")

CfnOutput(
self,
"service-discovery-namespace-name",
value=service_discovery.namespace_name,
export_name="SDNSName")

env = Environment(account="111111111111", region='us-east-1')
app = App()

lambda_stack = SampleStack(app, "sample-stack", env=env)

app.synth()
```

### Possible Solution

_No response_

### Additional Information/Context

_No response_

### CDK CLI Version

2.25.0 (build ae1cb4b)

### Framework Version

_No response_

### Node.js Version

v14.19.1

### OS

Windows

### Language

Python

### Language Version

_No response_

### Other information

_No response_

Start with the Python reproduction using aws_servicediscovery.PublicDnsNamespace and the synthesized stack in app.synth(). Verify how the public namespace creates hosted zones and whether the NS records are linked as described; done means the expected NS record is present and the public namespace resolves through the parent hosted zone.

Written by the indexing model from the issue text.