Bug 28957665: Fixed psObject List Enumeration (#25781)

[VeryEarly]

• Fixed psObject List Enumeration

• Added test case: UpdateConfig cmdlet

• Updated Changelog

• Additioanl Test Case + Updated Changelog

• Added complex test case: Multiple Configs

• Update NuGet.Config

Fix the security pipeline failure.

• revert nuget.config changes, test whether cached upstream works

• Update NuGet.Config

• Update NuGet.Config

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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
  • For SDK-based development mode, 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.
  • For autorest-based development mode, include the changelog in the PR description.
  • 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

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