Bump Microsoft.NET.Test.Sdk (#145)

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.5.0-preview-20221003-04 to 17.5.0-preview-20221221-03.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Changelog](https://github.com/microsoft/vstest/blob/main/docs/releases.md)
- [Commits](microsoft/vstest@v17.5.0-preview-20221003-04...v17.5.0-preview-20221221-03)

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

tests/Directory.Build.props

@@ -4,7 +4,7 @@
   <ItemGroup Condition="$(MSBuildProjectName) != 'LinkDotNet.Blog.TestUtilities'">
     <PackageReference Include="bunit" Version="1.13.5" />
     <PackageReference Include="FluentAssertions" Version="6.8.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0-preview-20221003-04" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0-preview-20221221-03" />
     <PackageReference Include="Moq" Version="4.18.3" />
     <PackageReference Include="xunit" Version="2.4.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">