Fix compilation errors for xUnit v3 migration#7607

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adamsitnik with Copilot wants to merge 19 commits into

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copilot/update-to-xunit-30

Commits on Jul 2, 2026

Migrate test infrastructure from xUnit v2 to xUnit v3
Copilot
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Fix xUnit v3 migration: IAsyncLifetime ValueTask, type conflicts, missing usings
Copilot
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Fix XunitLoggerProvider v2/v3 ITestOutputHelper type mismatch with adapter class
Copilot
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Remove reference to non-existent test/TestUtilities/TestUtilities.csproj from Slngen.ps1
Copilot
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Fix IDE0011, IDE0055, xUnit1006, CA1822 warnings treated as errors in CI
Copilot
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Fix IDE0032 and CA1816 warnings in ProjectTemplates Infrastructure
Copilot
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Fix CS8602 nullable dereference warnings on Record.Exception() results
Copilot
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Fix NU1010 Windows build errors by adding empty-TF fallback for AspNetCore PackageVersion items
Copilot
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Address review feedback: ConditionalNet472 pattern, Assert.SkipUnless, MarkItDownConditionHelper, ctor skip logic, FakeLogCollector StringBuilder, CA1816 fixes
Copilot
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Commits on Jul 3, 2026