test: fix test_vm_autoscaling.py which does not work due to userdata improvement#7921

weizhouapache merged 1 commit intoapache:mainapache/cloudstack:mainfrom

weizhouapache:4.19-fix-test_vm_autoscalingweizhouapache/cloudstack:4.19-fix-test_vm_autoscalingCopy head branch name to clipboard