[PS] Migrate RedisEnterpriseCache module to autorest v4

[JoyerJin]

Description

Preannouncement PR: #28621

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 pull request migrates the RedisEnterpriseCache module from AutoRest v3 to AutoRest v4, involving significant changes to the code generation tooling and breaking changes to cmdlet interfaces and parameter types.

• Updates the module to use AutoRest v4 with new API version 2025-05-01-preview
• Changes numerous parameter types from strongly-typed enums to strings
• Modifies parameter set structures and adds new parameter overloads for improved usability

Reviewed Changes

Copilot reviewed 80 out of 82 changed files in this pull request and generated 5 comments.

File	Description
tools/StaticAnalysis/Exceptions/Az.RedisEnterpriseCache/BreakingChangeIssues.csv	Documents breaking changes for cmdlet types and parameters to maintain compatibility tracking
src/RedisEnterpriseCache/RedisEnterpriseCache/help/*.md	Updates help documentation to reflect new parameter types and syntax changes
src/RedisEnterpriseCache/RedisEnterpriseCache/Az.RedisEnterpriseCache.psd1	Updates module metadata including version requirements and build configuration
src/RedisEnterpriseCache/RedisEnterpriseCache.Autorest/test/*.ps1	Removes test implementations and updates test environment configuration

[github-actions]

To the author of the pull request,
This PR was labeled "Contains Breaking Change" because breaking changes have been detected by the static analysis pipeline.

• According to our policy, breaking changes can only take place during major release and they must be preannounced.
• Please follow our guide on the detailed steps.
• Required: Please fill in the task below to facilitate our contact,you will receive notifications related to breaking changes.

[Copilot]

Pull request overview

Copilot reviewed 80 out of 83 changed files in this pull request and generated no new comments.

[isra-fel]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 3 pipeline(s).