chore: Update dependency Microsoft.NET.Test.Sdk to 18.5.1 (#29)

Author: renovate-bot

Directory.Packages.props

@@ -41,7 +41,7 @@
     <PackageVersion Include="Microsoft.CodeAnalysis.VisualBasic.Features" Version="$(RoslynAnalyzerPackageVersion)" />
     <PackageVersion Include="Microsoft.CodeAnalysis.VisualBasic.Workspaces" Version="$(RoslynAnalyzerPackageVersion)" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="$(RoslynAnalyzerPackageVersion)" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageVersion Include="Microsoft.VSSDK.BuildTools" Version="17.14.2094" />
     <PackageVersion Include="J2N" Version="2.1.0" />
   </ItemGroup>