Validate and don't allow the api createVMFromBackup for cks clusters

[kiranchavala]

problem

https://cloudstack.apache.org/api/apidocs-4.22/apis/createVMFromBackup.html

versions

ACS 4.22

The steps to reproduce the bug

1. Launch a cks cluster with 2 worker node with default system template

2. CKS cluster in running state

3. Navigate to the instance > worker node > Assign a backup offering to the worker node

4. Create a back up for the worker node

5. Try to create vm from backup

https://cloudstack.apache.org/api/apidocs-4.22/apis/createVMFromBackup.html

Error thrown by cloudstack saying that systemvm template cannot be used to launch a vm

4. CKS cluster goes into alert state

Second Scenario

1. Launch a cks cluster with 2 worker node with default system template

2. CKS cluster in running state

3. Launch a vm external vm with cks ubuntu template

https://download.cloudstack.org/testing/custom_templates/ubuntu/22.04/

4. Add the external node to the cks cluster

5. External node added successfully > Cks cluster in running state

6. Create a back up for the external worker node

7. Try to create vm from the external node backup

https://cloudstack.apache.org/api/apidocs-4.22/apis/createVMFromBackup.html

8. Back up vm created since its a ubuntu template

9. Try to re add the external backup vm

10. CKS cluster struck in the importing state

...

What to do about it?

Cloudstack should not allow to create vm from backup for vm's which are part of cks cluster

https://cloudstack.apache.org/api/apidocs-4.22/apis/createVMFromBackup.html

Currently creating a backup and restoring a back for cks node is working fine

An exception message should be thrown

Similar to the pr

#12800

Or

Don't allow the addition of external vm to the cks cluster if the vm is created from a backup