Exp(aws): Test lowering disk space to 30GB

Author: klieret

aws/setup/batch/launch_template.json

@@ -5,7 +5,7 @@
       {
         "DeviceName": "/dev/xvda",
         "Ebs": {
-          "VolumeSize": 50,
+          "VolumeSize": 30,
           "VolumeType": "gp3"
         }
       }