Resolve #386 & #330

[jtracey93]

Overview/Summary

Resolve #386 & #330

This PR fixes/adds/changes/removes

1. Fixes Update policy assignment for deny public IP #386 by replacing custom with built-in assignment in both Public & China
2. Fixes Review and update private DNS zones for private endpoint #330 by updating all Private DNS Zones with all the latest available for Public

Breaking Changes

Old policy assignment for Deny-Public-IP will need manually removing from the following scopes: corp (incorrect assignment) and identity. New policy assigned with name of Deny-Public-IP-Addresses (so technically not a breaking change, just a clean-up task)

Testing Evidence

Linting and automated tests will suffice

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

[jtracey93]

/azp run validateazcloud

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[jfaurskov]

/azp run validatemccloud

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[jfaurskov]

LGTM, if validatemccloud succeeds :-)