Fix pipeline

[johlju]

Pull Request (PR) description

• Move test pipeline to Windows PowerShell. The hosted agent was updated
  to PowerShell 7.4.1. That broke the ASKDSKey unit tests that has a helper
  function (Copy-ArrayObjects) that serializes objects.

This Pull Request (PR) fixes the following issues

None.

Task list

• Added an entry to the change log under the Unreleased section of the file CHANGELOG.md.
  Entry should say what was changed and how that affects users (if applicable), and
  reference the issue being resolved (if applicable).
• Resource documentation added/updated in README.md.
• Resource parameter descriptions added/updated in README.md, schema.mof and comment-based
  help.
• Comment-based help added/updated.
• Localization strings added/updated in all localization files as appropriate.
• Examples appropriately added/updated.
• Unit tests added/updated. See DSC Community Testing Guidelines.
• Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (131fb75) 98% compared to head (617de4f) 98%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #704   +/-   ##
===================================
  Coverage    98%    98%           
===================================
  Files        25     25           
  Lines      3471   3471           
===================================
  Hits       3402   3402           
  Misses       69     69           

see 1 file with indirect coverage changes