Update redirected links to new destination

[sdwheeler]

PR Summary

Update redirected links to new destination

• Fixes AB#568420

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.

[learn-build-service-prod]

PoliCheck Scan Report

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✅ No issues found

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[Copilot]

Pull request overview

Updates PowerShell documentation pages to point at new Microsoft Tech Community destinations, avoiding outdated redirected URLs across the reference hub and conceptual articles.

Changes:

• Updated the PowerShell Tech Community link to the new category/WindowsPowerShell destination.
• Updated the Az.Tools.Predictor announcement link to its new Tech Community blog URL.
• Refreshed ms.date metadata on the touched pages to reflect the update date.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
reference/index.yml	Updates the Tech Community card URL and refreshes page metadata date.
reference/docs-conceptual/learn/shell/using-predictors.md	Updates the Az.Tools.Predictor Tech Community blog link and refreshes page metadata date.
reference/docs-conceptual/community/community-support.md	Updates the Tech Community reference link and refreshes page metadata date.

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[learn-build-service-prod]

Learn Build status updates of commit 66fe20e:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/docs-conceptual/community/community-support.md	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/learn/shell/using-predictors.md	✅Succeeded	View (>=powershell-5.1)
reference/index.yml	✅Succeeded	View

For more details, please refer to the build report.