Update dependency Microsoft.NET.Test.Sdk to 18.4.0

[thomhurst]

This PR contains the following updates:

Package	Type	Update	Change
Microsoft.NET.Test.Sdk	nuget	minor	18.3.0 → 18.4.0

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Release Notes

microsoft/vstest (Microsoft.NET.Test.Sdk)

v18.4.0

What's Changed

• Add LoongArch64 support by @​stdmnpkg in #​15359

• Refactor Condition evaluation by @​Youssef1313 in #​15357

• Adding info on extensions points part 1 by @​nohwnd in #​15360

• Add option to ask for uploading code QL before the standard window ends by @​nohwnd in #​15373

• Update runtime versions by @​nohwnd in #​15372

• Fix .NET 10 regression for traits by @​Youssef1313 in #​15370

• Update target frameworks to net10.0 and net11.0 by @​dotnet-maestro[bot] in #​15349

• Fix names in pipeline matrix so we don't have to align them by @​nohwnd in #​15365

• Update SECURITY.md by @​Youssef1313 in #​15342

New Contributors

• @​stdmnpkg made their first contribution in #​15359

Full Changelog: microsoft/vstest@v18.3.0...v18.4.0

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