Reference version 6.0.0 not 8.0.0

Author: ndw

XmlResolver/XmlResolver.csproj

@@ -25,13 +25,13 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
-      <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
-      <PackageReference Include="Microsoft.Extensions.Configuration.Xml" Version="8.0.0" />
+      <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
+      <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
+      <PackageReference Include="Microsoft.Extensions.Configuration.Xml" Version="6.0.0" />
       <PackageReference Include="NLog" Version="5.2.8" />
       <PackageReference Include="NUnit" Version="4.0.1" />
       <PackageReference Include="NuGet.Frameworks" Version="5.10.0" />
-      <PackageReference Include="System.IO.Packaging" Version="8.0.0" />
+      <PackageReference Include="System.IO.Packaging" Version="6.0.0" />
     </ItemGroup>
 
     <ItemGroup>