update csharp scripting to 3.11.0

Author: shehrozeee

RazorEngineCore/RazorEngineCore.csproj

@@ -22,5 +22,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Razor.Language" Version="6.0.1" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
   </ItemGroup>
 </Project>