Fixes #12961 - Update telemetry docs

[sdwheeler]

PR Summary

Update telemetry docs

• Fixes AB#582188
• Fixes PowerShell telemetry is updated to respect the "diagnostics & feedback" setting on Windows #12961

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributor's guide.
• Style: This PR adheres to the style guide.

[Copilot]

Pull request overview

Updates the versioned about_Telemetry articles to document that PowerShell telemetry can now be disabled through Windows Diagnostics & feedback settings in addition to the existing environment-variable opt-out.

Changes:

• Updates ms.date metadata across PowerShell 7.4–7.7 telemetry docs.
• Adds a “Disable telemetry” section with platform-wide and Windows-specific opt-out guidance.
• Adds a “Further reading” section for environment variable and privacy links.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
reference/7.7/Microsoft.PowerShell.Core/About/about_Telemetry.md	Updates telemetry opt-out guidance for 7.7 preview and refreshes metadata.
reference/7.6/Microsoft.PowerShell.Core/About/about_Telemetry.md	Adds Windows Diagnostics & feedback opt-out guidance for 7.6.2.
reference/7.5/Microsoft.PowerShell.Core/About/about_Telemetry.md	Adds Windows Diagnostics & feedback opt-out guidance for 7.5.7.
reference/7.4/Microsoft.PowerShell.Core/About/about_Telemetry.md	Adds Windows Diagnostics & feedback opt-out guidance for 7.4.16.

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[learn-build-service-prod]

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[learn-build-service-prod]

Learn Build status updates of commit 65b55ab:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/7.4/Microsoft.PowerShell.Core/About/about_Telemetry.md	✅Succeeded	View (powershell-7.4)
reference/7.5/Microsoft.PowerShell.Core/About/about_Telemetry.md	✅Succeeded	View (powershell-7.5)
reference/7.6/Microsoft.PowerShell.Core/About/about_Telemetry.md	✅Succeeded	View (powershell-7.6)
reference/7.7/Microsoft.PowerShell.Core/About/about_Telemetry.md	✅Succeeded	View (powershell-7.7)

For more details, please refer to the build report.

[Xelu86]

LGTM