SqlAGListener: Add parameter ProcessOnlyOnActiveNode to make it cluster aware

[dlenkov]

Pull Request (PR) description

• Changes to SqlAGListener
  • Made the resource cluster aware. When ProcessOnlyOnActiveNode is specified,
    the resource will only determine if a change is needed if the target node
    is the active host of the SQL Server instance (issue #871).

This Pull Request (PR) fixes the following issues

• Fixes SqlAGListener: Should Be Cluster Aware #871

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 updated in the resource's README.md.
• Resource parameter descriptions updated in schema.mof.
• Comment-based help updated, including parameter descriptions.
• Localization strings updated.
• Examples updated.
• Unit tests updated. See DSC Community Testing Guidelines.
• Integration tests updated (where possible). See DSC Community Testing Guidelines.
• Code changes adheres to DSC Community Style Guidelines.

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This change is 

[codecov]

Codecov Report

Merging #1783 (c6f6283) into main (2fe45da) will increase coverage by 0%.
The diff coverage is 100%.

@@         Coverage Diff          @@
##           main   #1783   +/-   ##
====================================
  Coverage    92%     92%           
====================================
  Files        93      93           
  Lines      7832    7840    +8     
====================================
+ Hits       7206    7214    +8     
  Misses      626     626           

Flag	Coverage Δ
unit	92% <100%> (+<1%)	⬆️

Files	Coverage Δ
...Resources/DSC_SqlAGListener/DSC_SqlAGListener.psm1	98% <100%> (+<1%)	⬆️

[johlju]

@dlenkov can you please update the unit tests so they pass with this change. You might take look at the unit test for another resource that have implemented the same.

[github-actions]

Labeling this pull request (PR) as abandoned since it has gone 14 days or more since the last update. An abandoned PR can be continued by another contributor. The abandoned label will be removed if work on this PR is taken up again.

[github-actions]

Labeling this pull request (PR) as abandoned since it has gone 14 days or more since the last update. An abandoned PR can be continued by another contributor. The abandoned label will be removed if work on this PR is taken up again.

[github-actions]

Labeling this pull request (PR) as abandoned since it has gone 14 days or more since the last update. An abandoned PR can be continued by another contributor. The abandoned label will be removed if work on this PR is taken up again.

[johlju]

Reviewed 6 of 7 files at r1, 2 of 2 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @dlenkov)