Schema-Registry client badly formed hexadecimal UUID string

[pbabics]

Hello we've seen this error when using sync schema registry to encode messages into avro

	File "/e2e/utils/kafka/avro.py", line 43, in __call__
		return encoder(message, {})
	File "/.venv/lib/python3.13/site-packages/confluent_kafka/schema_registry/_sync/avro.py", line 290, in __call__
		return self.__serialize(obj, ctx)
					 ~~~~~~~~~~~~~~~~^^^^^^^^^^
	File "/.venv/lib/python3.13/site-packages/confluent_kafka/schema_registry/_sync/avro.py", line 327, in __serialize
		self._schema_id = SchemaId(AVRO_TYPE, registered_schema.schema_id, registered_schema.guid)
											~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	File "/.venv/lib/python3.13/site-packages/confluent_kafka/schema_registry/common/serde.py", line 336, in __init__
		self.guid = uuid.UUID(guid) if guid is not None else None
								~~~~~~~~~^^^^^^
	File "/.local/share/uv/python/cpython-3.13.7-linux-x86_64-gnu/lib/python3.13/uuid.py", line 181, in __init__
		raise ValueError('badly formed hexadecimal UUID string')
ValueError: badly formed hexadecimal UUID string

It is caused by the order of arguments used here - https://github.com/confluentinc/confluent-kafka-python/blob/master/src/confluent_kafka/schema_registry/_async/schema_registry_client.py#L670

which does not match the semantics of the class it creates here
https://github.com/confluentinc/confluent-kafka-python/blame/master/src/confluent_kafka/schema_registry/common/schema_registry_client.py#L937

[MSeal]

Thanks for reporting -- I've submitted a PR fix for the issue. We're going to be doing another beta release in near future that will include this fix. Older versions appear to not have this issue as it was introduced with filling out the missing SR api interfaces.