Tune CRI resource consume test case

[anson627]

This pull request includes several changes aimed at improving the configuration and validation processes in the clusterloader2 and cri-resource-consume modules. The most important changes include adding a new wait step for resource consumption, modifying node count parameters, and updating validation timeouts.

Configuration updates:

• modules/python/clusterloader2/cri/config/config.yaml: Added a new step to wait for resource consumption by introducing a sleep measurement with a duration of 1 minute. Also, modified the minDesiredNodeCount to be 80% of the total nodes and set a fixed timeout of 1 minute for node readiness.

Label adjustments:

• scenarios/perf-eval/cri-resource-consume/terraform-inputs/aws.tfvars: Changed the agentpool label from userpool1 to userpool0 to reflect updated resource allocation.

Validation improvements:

• steps/engine/clusterloader2/slo/validate.yml: Replaced the OPERATION_TIMEOUT environment variable with VALIDATION_TIMEOUT to better represent the purpose of the timeout parameter during node count validation.
• steps/topology/cri-resource-consume/validate-resources.yml: Added a template reference to the validate.yml script and set the desired_nodes parameter to 14 for resource validation.