Merge pull request #1750 from k8s-infra-cherrypick-robot/cherry-pick-1746-to-release-0.16

[release-0.16] ensure post-delete-job's service account matches ref in job spec

Author: k8s-ci-robot

deployment/helm/node-feature-discovery/templates/post-delete-job.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 kind: ServiceAccount
 metadata:
-  name: {{ include "node-feature-discovery.master.serviceAccountName" . }}-prune
+  name: {{ include "node-feature-discovery.fullname" . }}-prune
   namespace: {{ include "node-feature-discovery.namespace" . }}
   labels:
     {{- include "node-feature-discovery.labels" . | nindent 4 }}