[dataflow-app dev2] increase launch timeout to 30 min

crss-dataflow-app/crss-dataflow-app-dev2.yml

@@ -30,7 +30,7 @@ dataflow:
   url: http://spring-cloud-data-flow.marathon.l4lb.thisdcos.directory:9393
 
 scheduler:
-  launch-timeout-seconds: 1200
+  launch-timeout-seconds: 1800
   job-execution-timeout-minutes:
     default: 60
     runStlReady: 180