How disable in backup agent CERTIFICATE validation ?

[zakabluk]

I have had used charte 1.16.0, updated 1.16.2. During backup I come across with error

  error: >-
    create pbm object: create PBM connection to
    mongo-db-rs0-arbiter-0.mongo-db-rs0.prod-lineads.svc.cluster.local:27017,mongo-db-rs0-0.mongo-db-rs0.prod-lineads.svc.cluster.local:27017,mongo-db-rs0-1.mongo-db-rs0.prod-lineads.svc.cluster.local:27017:
    create mongo connection: connect: failed to find CERTIFICATE

but it's not problem for backup process, this one continue do backup and finished success. But in status PerconaServerMongoDBBackup cron job has status error. And log message above. I noticed that in new sts is exist option
PBM_AGENT_TLS_ENABLED = true. I suggest that it's what need me, but how I can change it by helm chart?

backup:
  enabled: true
  image:
    repository: percona/percona-backup-mongodb
    tag: 2.3.0