SqlSetup: Fix AddNode failing due to missing setup parameters

[nabrond]

Pull Request (PR) description

As documented by Microsoft, the "AddNode" action requires a value for the parameter FailoverClusterIPAddresses. The SqlServerDsc module was incorrectly excluding this property from the arguments passed to the setup program. This caused any DSC operations for "AddNode" to fail during the Set-TargetResource process. This PR makes a minor adjustment to allow the IP property to be emitted when $Action is set to "AddNode".

This Pull Request (PR) fixes the following issues

• Fixes #1171

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).
• [x] 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.
• [x] Unit tests updated. See DSC Community Testing Guidelines.
• [ ] Integration tests updated (where possible). See DSC Community Testing Guidelines.
• [x] Code changes adheres to DSC Community Style Guidelines.

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This change is 

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.

Project coverage is 94%. Comparing base (3c30929) to head (c8cbea4). Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
source/DSCResources/DSC_SqlSetup/DSC_SqlSetup.psm1	87%	1 Missing :warning:

Additional details and impacted files

[](https://app.codecov.io/gh/dsccommunity/SqlServerDsc/pull/2047?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dsccommunity) ```diff @@ Coverage Diff @@ ## main #2047 +/- ## ==================================== Coverage 94% 94% ==================================== Files 94 94 Lines 7922 7930 +8 ==================================== + Hits 7492 7500 +8 Misses 430 430 ``` | [Flag](https://app.codecov.io/gh/dsccommunity/SqlServerDsc/pull/2047/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dsccommunity) | Coverage Δ | | |---|---|---| | [unit](https://app.codecov.io/gh/dsccommunity/SqlServerDsc/pull/2047/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dsccommunity) | `94% <87%> (+<1%)` | :arrow_up: | | [Files with missing lines](https://app.codecov.io/gh/dsccommunity/SqlServerDsc/pull/2047?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dsccommunity) | Coverage Δ | | |---|---|---| | [source/DSCResources/DSC\_SqlSetup/DSC\_SqlSetup.psm1](https://app.codecov.io/gh/dsccommunity/SqlServerDsc/pull/2047?src=pr&el=tree&filepath=source%2FDSCResources%2FDSC_SqlSetup%2FDSC_SqlSetup.psm1&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=dsccommunity#diff-c291cmNlL0RTQ1Jlc291cmNlcy9EU0NfU3FsU2V0dXAvRFNDX1NxbFNldHVwLnBzbTE=) | `98% <87%> (+<1%)` | :arrow_up: |