Merge pull request #5480 from crobibero/api-session-message-type

Add SessionMessageType to generated openapi spec

(cherry picked from commit e3adc9ab74abaaa00a40bba7614e8e42d63119ee)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>

Jellyfin.Server/Filters/WebsocketModelFilter.cs

@@ -25,6 +25,8 @@ namespace Jellyfin.Server.Filters
             context.SchemaGenerator.GenerateSchema(typeof(GeneralCommandType), context.SchemaRepository);
 
             context.SchemaGenerator.GenerateSchema(typeof(GroupUpdate<object>), context.SchemaRepository);
+
+            context.SchemaGenerator.GenerateSchema(typeof(SessionMessageType), context.SchemaRepository);
         }
     }
 }