fix: missing EnforceExtendedAnalyzerRules

Warning RS1036 'Avalonia.Generators.NameGenerator.AvaloniaNameSourceGenerator': A project containing analyzers or source generators should specify the property '<EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>' Avalonia.Generators C:\GitHub\Avalonia\src\tools\Avalonia.Generators\NameGenerator\AvaloniaNameSourceGenerator.cs 11 N/A

src/tools/Avalonia.Generators/Avalonia.Generators.csproj

@@ -6,6 +6,7 @@
     <DefineConstants>$(DefineConstants);XAMLX_INTERNAL</DefineConstants>
     <IsPackable>true</IsPackable>
     <IsRoslynComponent>true</IsRoslynComponent>
+    <EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
   </PropertyGroup>
 
   <ItemGroup>