Bump Microsoft.NET.Test.Sdk from 17.14.1 to 18.0.0 (#3627)

Author: dependabot[bot]

Directory.Packages.props

@@ -17,7 +17,7 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" Version="4.14.0" />
     <PackageVersion Include="Microsoft.OpenApi" Version="1.6.25" />
     <PackageVersion Include="Microsoft.OpenApi.Readers" Version="1.6.25" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="NSwag.MSBuild" Version="14.6.0" />