Move to net6.0 RTM

Author: jaredpar

Basic.Reference.Assemblies.Net60/Basic.Reference.Assemblies.Net60.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NETCore.App.Ref" Version="6.0.0-preview.7.21377.19" IncludeAssets="none" PrivateAssets="all" GeneratePathProperty="true" />
+    <PackageReference Include="Microsoft.NETCore.App.Ref" Version="6.0.9" IncludeAssets="none" PrivateAssets="all" GeneratePathProperty="true" />
   </ItemGroup>
 
   <Import Project="Generated.targets" />