fix: Add missing DNS zones to policy assignment

[oZakari]

Overview/Summary

This pull request includes significant changes to the alzDefaultPolicyAssignments.bicep file to add multiple new Azure Private DNS Zone IDs. These changes enhance the module's capability to manage a broader range of Azure services.

The most important changes include:

• Added azureMachineLearningWorkspaceSecondPrivateDnsZoneId to support a second private DNS zone for Azure Machine Learning Workspace.
• Added azureMediaServicesLivePrivateDnsZoneId, azureMediaServicesStreamPrivateDnsZoneId, and azureMigratePrivateDnsZoneId to support additional private DNS zones for Azure Media Services and Azure Migrate.
• Added multiple azureMonitorPrivateDnsZoneId entries (from azureMonitorPrivateDnsZoneId2 to azureMonitorPrivateDnsZoneId5) to support additional private DNS zones for Azure Monitor.
• Added azureServiceBusNamespacePrivateDnsZoneId and azureSignalRPrivateDnsZoneId to support private DNS zones for Azure Service Bus and Azure SignalR.
• Added several azureStorage related private DNS zone IDs, including azureStorageBlobPrivateDnsZoneId, azureStorageQueuePrivateDnsZoneId, and azureStorageTablePrivateDnsZoneId, among others, to

This PR fixes/adds/changes/removes

1. Adds missing DNS zones to policy assingment

Breaking Changes

1. None

Testing Evidence

As part of this Pull Request I have

• Read the Contribution Guide and ensured this PR is compliant with the guide
• Ensured the resource API versions in .bicep file/s I am adding/editing are using the latest API version possible
• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues
• (ALZ Bicep Core Team Only) Associated it with relevant ADO Items
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Updated one or more of the following tests (if required)
  • Unit
  • Linting
  • E2E (End-To-End)
  • ValidateAzCloud (Base validation in Azure Cloud)
  • ValidateMcCloud (Base validation in Azure China Cloud)
• Updated relevant and associated documentation (e.g. Contribution Guide, Module READMEs, Wiki Docs etc.)
• If relevant, created or updated Code Tours here

[oZakari]

/azp run validateazcloud

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