azurerm_monitor_aad_diagnostic_setting - deprecate enabled_log.retention_policy block

[teowa]

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Description

From API response:

=== RUN   TestAccMonitorAADDiagnosticSetting/basic/eventhubDefault
    testcase.go:180: Step 1/2 error: Error running apply: exit status 1
        Error: creating Diagnostic Setting (Diagnostic Setting Name: "acctest-DS-241029231212899469"): unexpected status 400 (400 Bad Request) with response: {"code":"BadRequest","message":"Diagnostic settings does not support retention for new diagnostic settings."}
          with azurerm_monitor_aad_diagnostic_setting.test,
          on terraform_plugin_test.tf line 52, in resource "azurerm_monitor_aad_diagnostic_setting" "test":
          52: resource "azurerm_monitor_aad_diagnostic_setting" "test" {

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• env.ARM_FIVEPOINTZERO_BETA=false
  

• env.ARM_FIVEPOINTZERO_BETA=true
  

Change Log

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

• azurerm_monitor_aad_diagnostic_setting - deprecate enabled_log.retention_policy block

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 #0000

Note

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

[mbfrahry]

New test but update config to have both