Increase scaledown time to 30 mins (#2555)

Increase scaledown time to 30 mins to keep t2.micro dynamic nodes up with initial_count = 1

Signed-off-by: Yulei Wang <[email protected]>

Author: yuleiwan

tests/integration-tests/tests/update/test_update/test_update_hit/pcluster.config.ini

@@ -61,7 +61,7 @@ shared_dir = shared
 #volume_iops = None #Initially not set
 
 [scaling custom]
-#scaledown_idletime = None #Initially not set
+scaledown_idletime = 30
 
 [efs custom]
 shared_dir = efs

tests/integration-tests/tests/update/test_update/test_update_hit/pcluster.config.update.ini

@@ -77,7 +77,7 @@ shared_dir = shared
 volume_iops = 140
 
 [scaling custom]
-#scaledown_idletime = None #Initially not set
+scaledown_idletime = 30
 
 [efs custom]
 shared_dir = efs