Coder External Provisioners - Support using a StatefulSet optionally instead of a Deployment #24395

Hey folks! For autoscaling solutions on AWS like Karpenter or EKS AutoMode that will replace nodes on some basis, cached providers may be wiped out, this is especially an issue with AutoMode where nodes are forced to expire after a 21 days, this is not overridable unless you use Karpenter.

It's not a problem when dealing with small providers like hashicorp/kubernetes, but for ones like hashicorp/aws provider, it can take a few minutes to download completely, and this would get wiped each time the is rebuilt.

Since sharing persistent volumes between pods isn't recommended, a StatefulSet in this case should suffice.