Upgrade to SqlServerDsc 17.0.0 and add coverage. #1414

[addavenp1]

Pull Request (PR) description:

• Upgrade SqlServerDsc module to version 17.0.0
• Added coverage for STIG Id V-213929
• Added coverage for STIG Id V-213934
• Added coverage for STIG Id V-213976
• Added coverage for STIG Id V-213991

STIG Id V-213934 required a new parameter to be added to the SqlServer schema. The SqlPermission resource within SqlServerDsc module can't pass PSDscRunAsCredential to the resource. A new credential is required for the configuration to execute correctly.

This Pull Request (PR) fixes the following issues:

This fixes #1414

Task list:

• [x ] Change details added to Unreleased section of CHANGELOG.md (Not required for Convert modules)?
• [x ] Added/updated documentation, comment-based help and descriptions where appropriate?
• [x ] Examples appropriately updated?
• [x ] New/changed code adheres to Style Guidelines?
• [x ] Unit and (optional) Integration tests created/updated where possible?

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This change is 

[addavenp1]

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