#3749 fix: Quiet down noisy null replication key bookmark advancement logs Pull request opened by edgarrmondragon SSIA, if a stream has 500k / 1M records with a null replication key value, that's 500k warning logs Summary by Sourcery Lower the log severity of null replication value messages to keep high-volume replication logs quiet. Bug Fixes: • Reduce null replication value messages from warnings to debug logs to prevent excessive log noise for streams containing many null keys. Tests: • Update state handling coverage to verify null replication values are logged at debug level. meltano/sdk