[Subscription] Fix subscription some breaking changes

[lijinpei2008]

Description

• All cmdlets parameter SubscriptionName has the alias DisplayName.
• New-AzSubscriptionAlias:
  1. Since the arguments [-SubscriptionId] and [-BillingScope],[-SubscriptionName],[-Workload] are mutually exclusive, they are split into two different syntaxes
• Update-AzSubscriptionPolicy
  1. Commands are hidden due to the security level of Global admin permissions.
• Rename-AzSubscription
  1. Parameter [-SubscriptionName] was required.

Checklist

• Check this box to confirm: I have read the Submitting Changes section of CONTRIBUTING.md and reviewed the following information:

• SHOULD select appropriate branch. Cmdlets from Autorest.PowerShell should go to generation branch.
• SHOULD make the title of PR clear and informative, and in the present imperative tense.
• SHOULD update ChangeLog.md file(s) appropriately
  • For any service, the ChangeLog.md file can be found at src/{{SERVICE}}/{{SERVICE}}/ChangeLog.md
  • A snippet outlining the change(s) made in the PR should be written under the ## Upcoming Release header in the past tense. Add changelog in description section if PR goes into generation branch.
  • Should not change ChangeLog.md if no new release is required, such as fixing test case only.
• SHOULD have approved design review for the changes in this repository (Microsoft internal only) with following situations
  • Create new module from scratch
  • Create new resource types which are not easy to conform to Azure PowerShell Design Guidelines
  • Create new resource type which name doesn't use module name as prefix
  • Have design question before implementation
• SHOULD regenerate markdown help files if there is cmdlet API change. Instruction
• SHOULD have proper test coverage for changes in pull request.
• SHOULD NOT introduce breaking changes in Az minor release except preview version.
• SHOULD NOT adjust version of module manually in pull request

[azure-client-tools-bot-prd]

️✔️Az.Accounts

️✔️Build

️✔️PowerShell Core - Windows

⚠️Az.Subscription

️✔️Build

️✔️PowerShell Core - Windows

️✔️Breaking Change Check

️✔️PowerShell Core - Windows

⚠️Signature Check

⚠️PowerShell Core - Windows

Type	Cmdlet	Description	Remediation
⚠️	Get-AzSubscriptionAcceptOwnershipStatus	Get-AzSubscriptionAcceptOwnershipStatus Changes the ConfirmImpact but does not set the SupportsShouldProcess property to true in the cmdlet attribute.	Determine if the cmdlet should implement ShouldProcess and if so determine if it should implement Force / ShouldContinue
⚠️	Get-AzSubscriptionAcceptOwnershipStatus	Get-AzSubscriptionAcceptOwnershipStatus changes the confirm impact. Please ensure that the change in ConfirmImpact is justified	Verify that ConfirmImpact is changed appropriately by the cmdlet. It is very rare for a cmdlet to change the ConfirmImpact.
⚠️	Get-AzSubscriptionAlias	Get-AzSubscriptionAlias Changes the ConfirmImpact but does not set the SupportsShouldProcess property to true in the cmdlet attribute.	Determine if the cmdlet should implement ShouldProcess and if so determine if it should implement Force / ShouldContinue
⚠️	Get-AzSubscriptionAlias	Get-AzSubscriptionAlias changes the confirm impact. Please ensure that the change in ConfirmImpact is justified	Verify that ConfirmImpact is changed appropriately by the cmdlet. It is very rare for a cmdlet to change the ConfirmImpact.
⚠️	Get-AzSubscriptionPolicy	Get-AzSubscriptionPolicy Changes the ConfirmImpact but does not set the SupportsShouldProcess property to true in the cmdlet attribute.	Determine if the cmdlet should implement ShouldProcess and if so determine if it should implement Force / ShouldContinue
⚠️	Get-AzSubscriptionPolicy	Get-AzSubscriptionPolicy changes the confirm impact. Please ensure that the change in ConfirmImpact is justified	Verify that ConfirmImpact is changed appropriately by the cmdlet. It is very rare for a cmdlet to change the ConfirmImpact.

️✔️Help Example Check

️✔️PowerShell Core - Windows

️✔️Help File Existence Check

️✔️PowerShell Core - Windows

⚠️File Change Check

⚠️PowerShell Core - Windows

Type	Cmdlet	Description	Remediation
⚠️		It is required to update ChangeLog.md if you want to release a new version for Az.Subscription.	Add a changelog record under Upcoming Release section with past tense.

️✔️UX Metadata Check

️✔️PowerShell Core - Windows

⚠️Test

⚠️ - Linux

Type	Title	Current Coverage	Description
⚠️	Test Coverage Less Than 50%	44.44 %	Test coverage for the module cannot be lower than 50%.

⚠️ - MacOS

Type	Title	Current Coverage	Description
⚠️	Test Coverage Less Than 50%	44.44%	Test coverage for the module cannot be lower than 50%.

⚠️PowerShell Core - Windows

Type	Title	Current Coverage	Description
⚠️	Test Coverage Less Than 50%	44.44%	Test coverage for the module cannot be lower than 50%.