feature: azurerm_kubernetes_cluster data source output workload prefixed attributes

[sheeeng]

Fix #27761.

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Description

PR Checklist

• I have followed the guidelines in our Contributing Documentation.
• I have checked to ensure there aren't other open Pull Requests for the same update/change.
• I have checked if my changes close any open issues. If so please include appropriate closing keywords below.
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• I have used a meaningful PR title to help maintainers and other users understand this change and help prevent duplicate work.
  For example: “resource_name_here - description of change e.g. adding property new_property_name_here”

Changes to existing Resource / Data Source

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Testing

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Change Log

Below please provide what should go into the changelog (if anything) conforming to the Changelog Format documented here.

• azurerm_kubernetes_cluster - data source support for the workload_autoscaler_profile property. [Support for workload_* output from azurerm_kubernetes_cluster data source. #27761]
• azurerm_kubernetes_cluster - data source support for the workload_identity_enabled property. [Support for workload_* output from azurerm_kubernetes_cluster data source. #27761]

This is a (please select all that apply):

• Bug Fix
• New Feature (ie adding a service, resource, or data source)
• Enhancement
• Breaking Change

Related Issue(s)

Fixes #27761.

Note

If this PR changes meaningfully during the course of review please update the title and description as required.