[Az.PurviewData] update generation tool version: autorest.powershell v3 -> v4

[lijinpei2008]

The service team failed to provide a valid unit test, please ignore the items related to testing.
The content of the changelog is consistent with the PR shared below, so it will be updated in the PR below:
#27871

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

Regenerates the Az.Purview module with autorest.powershell v4, updating cmdlet help, manifest metadata, and the solution configuration.

• Refreshed all help/*.md files: removed obsolete -Kind params, changed parameter types to String, adjusted output model references, and normalized online URLs.
• Updated Az.Purview.psd1: bumped generation date, upgraded Az.Accounts requirement, added new Update-* cmdlets, and fixed path separators.
• Revised Purview.sln: inserted the new purviewdata project entry and expanded solution platform configurations for x64/x86.

Reviewed Changes

Copilot reviewed 401 out of 401 changed files in this pull request and generated 1 comment.

File	Description
src/Purview/Purview/help/*.md	Help topics regenerated: syntax updated, types set to String, output models simplified, URLs lowercased
src/Purview/Purview/Az.Purview.psd1	Module manifest bumped date, dependency version, added update cmdlets, path separator normalization
src/Purview/Purview.sln	Added purviewdata project and x64/x86 Debug/Release configurations

Comments suppressed due to low confidence (4)

src/Purview/Purview/help/New-AzPurviewAdlsGen1ScanRulesetObject.md:18

• Switching the file extension parameter from a specific enum type to a plain String[] removes compile-time validation; consider retaining the enum for stricter input validation.

[-ScanningRuleFileExtension <String[]>]

src/Purview/Purview/help/New-AzPurviewAdlsGen1ScanRulesetObject.md:4

• [nitpick] Lowercasing the cmdlet in the online URL may diverge from established URL conventions; verify that the new link resolves correctly and consider matching existing casing patterns.

+online version: https://learn.microsoft.com/powershell/module/Az.Purview/new-azpurviewadlsgen1scanrulesetobject

src/Purview/Purview/Az.Purview.psd1:67

• [nitpick] Using forward slashes in PSD1 paths may not be supported on all platforms; consider using backslashes or a path-building function to ensure cross-platform compatibility.

+FormatsToProcess = 'Purview.Autorest/Az.Purview.format.ps1xml',

src/Purview/Purview/Purview.sln:31

• [nitpick] Adding explicit x64/x86 configurations duplicates the existing Any CPU settings and increases maintenance overhead; consider consolidating or removing redundant solution platforms.

+	Debug|x64 = Debug|x64

[vidai-msft]

The current Az.Accounts version is 5.1.0. Should we also update it here?