how to securely add password or secrets into a helm values.yaml file that will be commited in git?

Question

I'm using superset helm chart and we are committing into git our values.yaml file. The issue is that some fields of values.yaml want me to include a password or secrets example:

supersetNode:
  connections:

    db_host: "10.100.0.0"
    db_port: "5432"
    db_user: myuser
    db_pass: MY_SECRET_PASS

How can I avoid injecting the secret here since this values.yaml file will be git committed?

This is the template file where the secret will end up being used: