PL-8906 Support Kryo serialization by default in the next platform version

modules/global/src/com/haulmont/cuba/core/sys/serialization/SerializationSupport.java

@@ -44,7 +44,7 @@ public class SerializationSupport {
                         format("Could not create an instance of serialization class [%s]", serializationClassStr));
             }
         } else {
-            serialization = new StandardSerialization();
+            serialization = new KryoSerialization();
         }
     }