How to pass JOB_COMPLETION_INDEX to a pod as an environment variable

indexed-job.yaml

apiVersion: batch/v1
kind: Job
metadata:
  name: indexed-job
spec:
  completions: 5
  parallelism: 3
  completionMode: Indexed
  template:
    spec:
      restartPolicy: Never
      containers:
      - name: worker
        image: foo/bar
        env:
        - name: INDEX-VAL
          valueFrom:
            fieldRef:
              fieldPath: metadata.annotations['batch.kubernetes.io/job-completion-index']