EnablePreviewFeatures in Transport.Quic

Author: Tratcher

src/Servers/Kestrel/Transport.Quic/src/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic.csproj

@@ -10,6 +10,8 @@
     <NoWarn>CA1416;CS1591;CS0436;$(NoWarn)</NoWarn><!-- Conflicts between internal and public Quic APIs; Platform support warnings. -->
     <IsPackable>false</IsPackable>
     <Nullable>enable</Nullable>
+    <!-- Turn on preview features so we can use Quic -->
+    <EnablePreviewFeatures>True</EnablePreviewFeatures>
   </PropertyGroup>
 
   <ItemGroup>