Consistency pass on naming in JJB

- Name of the pipeline script when parameterized: `pipeline-script`
- Name of executor the job is running on: `build-node` (or `buildNode` if
  in a pipeline job)

Change-Id: Id069a2d3f17dc5dbd7259e0ed046b72017da0538
diff --git a/jjb/verify/helm-charts.yaml b/jjb/verify/helm-charts.yaml
index 3c119c6..137586b 100644
--- a/jjb/verify/helm-charts.yaml
+++ b/jjb/verify/helm-charts.yaml
@@ -32,4 +32,4 @@
     name: 'post-merge-helm-charts-jobs'
     jobs:
       - 'triggered-api-test':
-          pipeline_script: 'chart-api-test-helm.groovy'
+          pipeline-script: 'chart-api-test-helm.groovy'