ActiveDirectoryDsc: Fix CI Pipeline and DscResource.Common Module Import

[X-Guardian]

Pull Request (PR) description

This PR fixes the CI pipeline by pinning the Pester module to v4.10.1 and updating the DscResource.Common module to v0.9.0.

It also restores importing the DscResource.Common module import in the ActiveDirectoryDsc.Common module that was incorrectly disabled.

This Pull Request (PR) fixes the following issues

• Fixes #612

Task list

• [x] 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.

---

This change is 

[codecov[bot]]

Codecov Report

Merging #614 into master will increase coverage by 0%. The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #614   +/-   ##
=====================================
  Coverage      98%    98%           
=====================================
  Files          24     24           
  Lines        3109   3110    +1     
=====================================
+ Hits         3048   3049    +1     
  Misses         61     61           

[X-Guardian]

Cheers @johlju.