Replace Windows PowerShell with PowerShell - the CimCmdlets

[it-praktyk]

It's a partial fix of #2747 - for the CimCmdlets only.

Version(s) of document impacted

• Impacts 6.1 document
• Impacts 6.0 document
• Impacts 5.1 document
• Impacts 5.0 document
• Impacts 4.0 document
• Impacts 3.0 document

Reason(s) for not updating all version of documents

• The documented feature was introduced in version (list version here) of PowerShell
• This issue only shows up in version (list version(s) here) of the document
• This PR partially fixes the issue, and issue Documentation under reference/6 contains references to Windows PowerShell not to PowerShell Core #2747 tracks the remaining work

[zjalexander]

✅ Validation status: passed

File	Status	Preview URL	Details
reference/6/CimCmdlets/Invoke-CimMethod.md	✅Succeeded	View (powershell-6)
reference/6/CimCmdlets/New-CimInstance.md	✅Succeeded	View (powershell-6)

For more details, please refer to the build report.

Note: If you changed an existing file name or deleted a file, broken links in other files to the deleted or renamed file are listed only in the full build report.

[DCtheGeek]

LGTM