Support use of variables in pipeline stageName

Drone Support
1

The operators on my team wish to have the deployment cluster displayed in the pipeline deployments view. Since the deployment cluster is a workflow variable, I unsuccessfully tried to use that variable in the stageName. This feature will help me eliminate multiple pipeline duplicates.

harnessApiVersion: '1.0'
type: PIPELINE
pipelineStages:
# ...
- type: ENV_STATE
  name: Deploy Chart
  parallel: false
  skipCondition:
    type: DO_NOT_SKIP
  stageName: Deploy ${workflow.variables.serviceName} to ${workflow.variables.clusterName}
  workflowName: Deploy Chart
  workflowVariables:
  - entityType: INFRASTRUCTURE_DEFINITION
    name: cluster
    value: ${cluster}
  - entityType: ENVIRONMENT
    name: environment
    value: ${environment}
  - entityType: SERVICE
    name: service
    value: ${service}