Fix QA test for ChangelogManagement v3.0.1

[johlju]

Pull Request

Pull Request (PR) description

Changed

• The QA tests can now be debugged by Invoke-Pester directly, before it had to be started by the build script build.ps1. This will also help the Pester Tests VS Code extension to be able to run the tests.

Fixed

• Now the QA test that verifies that the Unreleased section header is present in the CHANGELOG.md correctly supports ChangelogManagement v3.0.1.

Task list

• [x] The PR represents a single logical change. i.e. Cosmetic updates should go in different PRs.
• [x] Added an entry under the Unreleased section of in the CHANGELOG.md as per format.
• [x] Local clean build passes without issue or fail tests (build.ps1 -ResolveDependency).
• [ ] Documentation added/updated in README.md.
• [ ] Comment-based help added/updated.
• [ ] Localization strings added/updated in all localization files as appropriate.
• [x] Unit tests added/updated. See DSC Community Testing Guidelines.
• [ ] Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• [x] New/changed code adheres to DSC Community Style Guidelines.

---

This change is 

[codecov[bot]]

Codecov Report

Merging #405 (ccf17f3) into main (50b215e) will not change coverage. The diff coverage is n/a.

@@         Coverage Diff         @@
##           main   #405   +/-   ##
===================================
  Coverage    81%    81%           
===================================
  Files        42     42           
  Lines      2248   2248           
===================================
  Hits       1835   1835           
  Misses      413    413           

[johlju]

/azp run

[azure-pipelines[bot]]

Pull request contains merge conflicts.

[johlju]

I will merged this when tests passes.