case 4670 net10.0 + Asp.Versioning + BouncyCastle.Cryptography 2.7.0 + MailKit 4.x (forced: MimeKit 3.x pulled Portable.BouncyCastle)

sockeye.tests retargeted to net10.0, packages current. Re-sign harness: 1399/1399.
AV0014 suppressed: licence controllers were never versioned under 5.x defaults.

server/Controllers/FetchController.cs

@@ -12,7 +12,9 @@ namespace Sockeye.Api.Controllers
 
     [Route("fetch")]//Legacy v7 license fetch route
     [Produces("text/plain")]
+#pragma warning disable AV0014 // Missing API behavior
     public class FetchController : ControllerBase
+#pragma warning restore AV0014 // Missing API behavior
     {
 
         private readonly AyContext ct;