fix cleanup order

[zhangzujian]

• Make sure you have followed Kube-OVN Code Style.

What type of this PR

Examples of user facing changes:

• Features
• Bug fixes
• Docs
• Tests

Which issue(s) this PR fixes:

E0511 08:37:22.113563      13 subnet.go:1729] failed to get vlan ovn-vlan: vlan.kubeovn.io "ovn-vlan" not found
E0511 08:37:22.113659      13 subnet.go:925] reconcile vlan for subnet ovn-default failed, vlan.kubeovn.io "ovn-vlan" not found
E0511 08:37:22.113767      13 subnet.go:713] reconcile subnet for ovn-default failed, vlan.kubeovn.io "ovn-vlan" not found
E0511 08:37:22.113872      13 subnet.go:195] error syncing 'ovn-default': vlan.kubeovn.io "ovn-vlan" not found, requeuing

WHAT

copilot:summary

copilot:poem

HOW

copilot:walkthrough

[github-actions]

• The cleanup.sh script is deleting the VLAN and Provider Network resources after deleting other resources. This can cause issues if there are dependencies on these resources. It would be better to delete them before deleting other resources.
• The script is using a for loop to iterate over resources and delete them one by one. This can be slow and inefficient, especially if there are many resources. It would be better to use kubectl delete with the --all flag to delete all resources of a certain type at once.
• The script is not checking for errors when deleting resources. If a resource fails to delete, the script will continue to try to delete other resources, potentially leaving the cluster in an inconsistent state. It would be better to check for errors and handle them appropriately.
• The script is deleting the kube-ovn-monitor deployment without checking if it is still running. This can cause issues if the deployment is still needed. It would be better to check if the deployment is running before deleting it.
• The script is deleting config maps without checking if they are still being used by other resources. This can cause issues if the config maps are still needed. It would be better to check if the config maps are still being used before deleting them.