Fix the segment interval for pulling metadata (#3174)
Fix the segment interval for pulling metadata (#3174)

The end of the interval would be on the truncated today date, which
means that you will exclude today. If your realtime ingestion job
runs shorter than a day, the metadata cannot be pulled from the
druid cluster.
zhouyao1994/incubator-superset,massgov/incubator-superset,timifasubaa/incubator-superset,airbnb/caravel,airbnb/caravel,dmigo/incubator-superset,airbnb/caravel,apache/incubator-superset,timifasubaa/incubator-superset,SingTel-DataCo/incubator-superset,SingTel-DataCo/incubator-superset,alanmcruickshank/superset-dev,mistercrunch/panoramix,mistercrunch/panoramix,dmigo/incubator-superset,apache/incubator-superset,alanmcruickshank/superset-dev,mistercrunch/panoramix,massgov/incubator-superset,massgov/incubator-superset,timifasubaa/incubator-superset,apache/incubator-superset,SingTel-DataCo/incubator-superset,nekia/incubator-superset-dev,airbnb/superset,zhouyao1994/incubator-superset,apache/incubator-superset,timifasubaa/incubator-superset,airbnb/superset,FrederichCheng/incubator-superset,apache/incubator-superset,SingTel-DataCo/incubator-superset,dmigo/incubator-superset,FrederichCheng/incubator-superset,dmigo/incubator-superset,mistercrunch/panoramix,airbnb/superset,nekia/incubator-superset-dev,zhouyao1994/incubator-superset,nekia/incubator-superset-dev,alanmcruickshank/superset-dev,airbnb/caravel,airbnb/superset,massgov/incubator-superset,zhouyao1994/incubator-superset,alanmcruickshank/superset-dev,FrederichCheng/incubator-superset,nekia/incubator-superset-dev,zhouyao1994/incubator-superset,FrederichCheng/incubator-superset