remove Score Historicals older than 30 days

src/class/Queue.ts

@@ -43,7 +43,12 @@ export default class Queue {
       }
     });
 
+    const clearOldHistoricalReportsJob = new cron.CronJob('0 20 * * *', async () => {
+      this.client.db.ScoreHistorical.remove({ date: { $lt: new Date(Date.now() - 30 * 24 * 60 * 60 * 1000) } });
+    });
+
     historialCommunityReportJob.start();
+    clearOldHistoricalReportsJob.start();
   }
 
   public async jobCounts() {