decrease parallel stl daily jobs

crss-dataflow-app/crss-dataflow-app.yml

@@ -79,7 +79,7 @@ sftp:
     privateKey:
 
 scheduler:
-  parallel-stl-monthly-job: 4
+  parallel-stl-monthly-job: 2
   interval-milliseconds: 10000
   launch-timeout-seconds: 900
 #  add additional keys from JobProcess.envKey if you need to fine-grain the job execution timeout for a specific job