Improve archiving

[ilyakooo0]

Currently, we delete the helm deployment when archiving. This can cause problems like generating new different passwords.

A better way of doing archiving might be scaling the deployment to 0 replicas.

To do this we need to:

• [ ] Change the archive control script to scale to 0 instead of delete
• [ ] Create an unarchive script that scales to a non-zero number of replicas
• [x] Call the unarchive script from the Octopod backend.