fixes: ZSTAC-24142 use warn-level for loki-server log
fixes: ZSTAC-24142 use warn-level for loki-server log

AlanJager/zstack,zstackorg/zstack,MatheMatrix/zstack,zstackorg/zstack,AlanJager/zstack,AlanJager/zstack,MatheMatrix/zstack,MatheMatrix/zstack,zstackio/zstack,zstackio/zstack,zstackio/zstack