Bump MSTest + VSTest and use MSTest.Sdk#203

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Evangelink wants to merge 2 commits intoCommunityToolkit:mainfrom

Evangelink:mstest-sdk

Commits on Feb 10, 2025

Use MSTest.Sdk with VSTest + parallelize
Evangelink
committed

Commits on Jan 15, 2026

Merge branch 'main' into mstest-sdk
Arlodotexe
authored