Add SLI Read-Only larger scope 100 nodes 10 jobs with 10k pods

[vittoriasalim]

This PR adds an SLI (Service Level Indicator) test scenario to kperf for measuring the latency of read-only Kubernetes API calls in larger scope, following the guidelines outlined in the Kubernetes API call latency SLOs

Test Scenario

• Cluster Setup:
  • Virtual Nodes: 100 nodes provisioned via kperf with:
    • --cpu=64
    • --memory=238
    • --max-pods=250
• Workload: 10 jobs with 10,000 pods

🟦 Namespace-Scoped Requests

Request Type	Resource	Namespace	Name	API Version	Shares
staleList	pods	job10pod10k	—	v1	10
staleGet	pods	virtualnodes-kperf-io	node100job10pod10k-1	v1	300
staleList	jobs	job10pod10k	—	batch/v1	10
staleGet	jobs	job10pod10k	batchjobs	batch/v1	300

---

🟥 Cluster-Scoped Requests

Request Type	Resource	Name	API Version	Shares
staleList	nodes	—	v1	10
staleList	namespaces	—	v1	10
staleGet	nodes	node100job10pod10k-3	v1	300
staleGet	namespaces	job10pod10k	v1	300