[AVM Module Issue]: avm/res/container-instance/container-group autoGeneratedDomainNameLabelScope paramter usage

### Check for previous/existing GitHub issues

- [x] I have checked for previous/existing GitHub issues

### Issue Type?

Bug

### Module Name

avm/res/container-instance/container-group

### (Optional) Module Version

_No response_

### Description

Module autoGeneratedDomainNameLabelScope and dnsNameServers has really weird interaction

```Bicep
ipAddress: {
type: ipAddressType
autoGeneratedDomainNameLabelScope: !empty(dnsNameServers) ? autoGeneratedDomainNameLabelScope : null
dnsNameLabel: dnsNameLabel
ports: ipAddressPorts
}
````

```Bicep
@description('Optional. Specify level of protection of the domain name label.')
@allowed([
'Noreuse'
'ResourceGroupReuse'
'SubscriptionReuse'
'TenantReuse'
'Unsecure'
])
param autoGeneratedDomainNameLabelScope string = 'TenantReuse'

@description('Optional. The Dns name label for the resource.')
param dnsNameLabel string?

@description('Optional. List of dns servers used by the containers for lookups.')
param dnsNameServers array?
```

Why usage of domain label protection level requires parameter `dnsNameServers`?

Also documentation should mention autoGeneratedDomainNameLabelScope condition if dnsNameServers is needed. Now template's default setting of `autoGeneratedDomainNameLabelScope` is being ignored unless dnsNameServers is configured.

### (Optional) Correlation Id

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