Bump Microsoft.NET.Test.Sdk from 16.5.0 to 16.6.0

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 16.5.0 to 16.6.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Commits](microsoft/vstest@v16.5.0...v16.6.0)

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

Author: dependabot-preview[bot]

tests/Exceptionless.DateTimeExtensions.Tests/Exceptionless.DateTimeExtensions.Tests.csproj

@@ -8,7 +8,7 @@
     <ProjectReference Include="..\..\src\Exceptionless.DateTimeExtensions\Exceptionless.DateTimeExtensions.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
     <PackageReference Include="Foundatio.Logging.Xunit" Version="9.1.0-rc1" />