I am trying to ingest data from Kafka, deduplicate it, and sink it back to Kafka using RisingWave. However, I am encountering an error related to the configuration parameters. Here is the configuration snippet: CREATE TABLE IF NOT EXISTS test_source ( id varchar, timestamp timestamp, field integer ) WITH ( connector='kafka', topic='test_risingwave_source', properties.bootstrap.server='localhost:9092', scan.startup.mode='earliest', scan.startup.timestamp_millis='140000000' ) ROW FORMAT JSON; CREATE SINK test_sink FROM test_source WITH ( connector='kafka', kafka.brokers='localhost:9092', kafka.topic='test_risingwave_sink', format='append_only', force_append_only='true' ); The error message is: ERROR: QueryError: internal error: Rpc error: gRPC error (Internal error): Executor error: Sink error: config error: missing field properties.bootstrap.server``. What could be the issue?