RisingWave Community - How to modify the `initial-cluster-state` ENV for etcd nodes when using a helm chart deployment?

Locate the values.yaml file for the helm chart deployment of etcd.
Look for the extraEnvVars, extraEnvVarsCM, and extraEnvVarsSecret sections in the values.yaml file.
Set the desired environment variable, such as initial-cluster-state, within the extraEnvVars section.
Update the value of the environment variable to the desired configuration.
Apply the helm chart deployment with the modified environment variable settings.