Change name of ClrVersion parameter back - #11623

#9134 changed the ClrVersion parameter property on New-ModuleManifest to CLRVersion. To prevent portability issues with PowerShell tooling, this PR changes it back.

PR Context

See #11619.

PR Checklist

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• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
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• Breaking changes
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  • Experimental feature(s) needed
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• Tooling
  • I have considered the user experience from a tooling perspective and don't believe tooling will be impacted.
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    • Impact on PowerShell Editor Services which is used in the PowerShell extension for VSCode (which runs in a different PS Host).
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    • Impact on PSScriptAnalyzer (which provides linting & formatting in the editor extensions).
    • Impact on EditorSyntax (which provides syntax highlighting with in VSCode, GitHub, and many other editors).