[PS] Migrate Resource module Authorization part to autorest v4

[JoyerJin]

Description

Mandatory Checklist

• Please choose the target release of Azure PowerShell. (⚠️Target release is a different concept from API readiness. Please click below links for details.)

  • General release
  • Public preview
  • Private preview
  • Engineering build
  • No need for a release

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

• SHOULD update ChangeLog.md file(s) appropriately
  • Update 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.
  • Should not change ChangeLog.md if no new release is required, such as fixing test case only.
• SHOULD regenerate markdown help files if there is cmdlet API change. Instruction
• SHOULD have proper test coverage for changes in pull request.
• SHOULD NOT adjust version of module manually in pull request

[azure-client-tools-bot-prd]

Thanks for your contribution! The pull request validation has started. Please revisit this comment for updated status.

[Copilot]

Pull Request Overview

This PR migrates the Authorization cmdlet module to use AutoRest v4 by updating generated documentation, metadata, and assembly info to align with the new code generator and add JSON-based parameter sets.

• Updated many cmdlet markdown files: removed outdated -InputObject sections, introduced CreateViaJsonFilePath/CreateViaJsonString parameter sets, adjusted Parameter Sets annotations, and standardized output model references.
• Updated Az.Authorization.md and module metadata: bumped Module Guid, added new Update- cmdlets entries, and increased Az.Accounts dependency version.
• Added a generated AssemblyInfo.cs for assembly metadata and versioning.

Reviewed Changes

Copilot reviewed 57 out of 57 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
docs/*.md	Refactored cmdlet syntax blocks, parameter sets, types, and outputs
docs/Az.Authorization.md	Updated help index entries, Module Guid, and dependency bump
README.md	Adjusted AutoRest directives
Properties/AssemblyInfo.cs	Added generated assembly metadata
Az.Authorization.nuspec	Bumped Az.Accounts dependency version

Comments suppressed due to low confidence (2)

src/Resources/Authorization.Autorest/docs/New-AzRoleManagementPolicyAssignment.md:21

• Consider adding or updating Pester tests to cover the new JsonFilePath and JsonString parameter sets for this cmdlet.

### CreateViaJsonFilePath

[JoyerJin]

disable-table-view feature is missing, need confirm if this is expected.

[vidai-msft]

disable-table-view feature is missing, need confirm if this is expected.

cc @dolauli

[vidai-msft]

This PR contains breaking changes.

[github-actions]

To the author of the pull request,
This PR was labeled "Breaking Change Release" because it contains breaking changes.

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