[Feature]: Please add "FOCUS" as a value for the Metric parameter in New-AzCostManagementDetailReport

[k3-yasuda]

Description of the new feature

Recently, it has become possible to retrieve FOCUS-compliant reports from Cost Management.
I would like to be able to retrieve such reports with the New-AzCostManagementDetailReport cmdlet as well, by specifying "FOCUS" for the Metric parameter.

References:

• Microsoft official documentation: https://learn.microsoft.com/ja-jp/powershell/module/az.costmanagement/new-azcostmanagementdetailreport?view=azps-14.1.0
• FinOps Toolkit: https://microsoft.github.io/finops-toolkit/
• Improved Exports: https://learn.microsoft.com/en-us/azure/cost-management-billing/costs/tutorial-improved-exports

Proposed implementation details (optional)

No response

[microsoft-github-policy-service]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @TiagoCrewGitHubIssues.