add databricks as service in connectivity

[lccc-matt-caswell]

Overview/Summary

So I've deployed this module recently and was relying on policy to setup dns for private endpoints. Databricks was the only service I couldn't find an existing zone for.

This PR fixes/adds/changes/removes

1. Add private dns zone for databricks

Breaking Changes

1. None

Testing Evidence

I can set this up as a private terraform module and test it but I was hoping you'd have unit tests for it. It's not urgent for me to fix this but I thought I'd raise it as a PR to at least see if there was any reason it wasn't in that I am missing or worth adding.

As part of this Pull Request I have

• Checked for duplicate Pull Requests
• Associated it with relevant issues, for tracking and closure.
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Updated relevant and associated documentation.

[lccc-matt-caswell]

@microsoft-github-policy-service agree company="Low Carbon Contracts"

[lccc-matt-caswell]

/azp run unit

[azure-pipelines]

Commenter does not have sufficient privileges for PR 905 in repo Azure/terraform-azurerm-caf-enterprise-scale