feat: add possibility to use Karpenter

[mglotov]

Karpenter is an open-source node provisioning project built for Kubernetes. Karpenter improves the efficiency and cost of running workloads on Kubernetes clusters by:

• Watching for pods that the Kubernetes scheduler has marked as unschedulable
• Evaluating scheduling constraints (resource requests, nodeselectors, affinities, tolerations, and topology spread constraints) requested by the pods
• Provisioning nodes that meet the requirements of the pods
• Removing the nodes when the nodes are no longer needed

Expected Behavior

Fully migrate from Cluster Autoscaler to Karpenter or provide a possibility to

• switch between solutions
• enable/disable them

Current Behavior

Only cluster-autoscaler is used to scale node pools automatically.