Get schema_id used in deseriealization AvroDeserializer/JSONDeserializer

[runnerlt]

Hi,

When consuming topics with schema registered in SR, it is useful to get schema_id used to deserialize message in msg headers, or make
it available as tuple (obj_dict, schema id) from return value of class AvroDeserializer(Deserializer) _ call _.

Schema_id may be useful to maintain ingestion table on database side automatically. Because now we have pain. It is ok, we have deserialized msg automatically for us. But how to maintain database side ingestion table without knowing explicit schema of consumed message?