Safe, versioned Worker Deployments on Kubernetes: Now with autoscaling!

Introduces `WorkerResourceTemplate`, a new custom resource for the Temporal Worker Controller that allows users to define Kubernetes resources (like HPAs and PDBs) to be automatically created and managed for each versioned Worker Deployment. This enables autoscaling of individual worker versions based on metrics such as CPU utilization, slot utilization, and task queue backlog count. The feature leverages Kubernetes patterns and existing autoscaling tooling, providing security guardrails through a validating webhook to prevent privilege escalation and block banned resource kinds.