[.NET packages update] Bump the dotnet group with 1 update (#189)

Updated [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest)
from 17.14.1 to 18.0.0.

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Author: dependabot[bot]

Directory.Packages.props

@@ -15,7 +15,7 @@
 		<PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
 		<PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="System.ComponentModel.Annotations" Version="5.0.0" />
     <PackageVersion Include="xunit.v3" Version="3.1.0" />