Update DiffEngine.Tests.csproj

Author: SimonCropp

src/DiffEngine.Tests/DiffEngine.Tests.csproj

@@ -10,7 +10,7 @@
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     <PackageReference Include="MarkdownSnippets.MsBuild" Version="18.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="System.Drawing.Common" Version="4.7.0" />
     <PackageReference Include="Xunit" Version="2.4.1" />