Update .Source.csproj

Author: mythz

src/ServiceStack.Admin/ServiceStack.Admin.Source.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <PackageId>ServiceStack.Admin</PackageId>
     <AssemblyName>ServiceStack.Admin</AssemblyName>
-    <TargetFrameworks>net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net45;net6.0</TargetFrameworks>
     <Title>ServiceStack Admin UI and AutoQuery Browser</Title>
     <PackageDescription>
       ServiceStack Admin UI with AutoQuery Viewer -  an instant UI for constructing 
@@ -34,7 +34,7 @@
     <Reference Include="System.Web" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net6.0' ">
     <PackageReference Include="System.Collections.Specialized" Version="4.3.0" />
     <PackageReference Include="System.ServiceModel.Primitives" Version="4.8.1" />
     <PackageReference Include="System.Xml.XmlSerializer" Version="4.3.0" />