MariaDB does not offer auth.rootPassword option and secrets get hardcoded into values.yaml

I am seeing this in my nextcloud mariadb pod:

$ k logs -n nextcloud pod/nextcloud-mariadb-0

mariadb 18:32:42.96
mariadb 18:32:42.96 Welcome to the Bitnami mariadb container
mariadb 18:32:42.97 Subscribe to project updates by watching https://github.com/bitnami/bitnami-docker-mariadb
mariadb 18:32:42.97 Submit issues and feature requests at https://github.com/bitnami/bitnami-docker-mariadb/issues
mariadb 18:32:42.97
mariadb 18:32:42.97 INFO  ==> ** Starting MariaDB setup **
mariadb 18:32:42.98 INFO  ==> Validating settings in MYSQL_*/MARIADB_* env vars
mariadb 18:32:42.99 INFO  ==> Initializing mariadb database
mariadb 18:32:43.00 WARN  ==> The mariadb configuration file '/opt/bitnami/mariadb/conf/my.cnf' is not writable. Configurations based on environment variables will not be applied for this file.
mariadb 18:32:43.00 INFO  ==> Using persisted data
mariadb 18:32:43.02 INFO  ==> Running mysql_upgrade
mariadb 18:32:43.02 INFO  ==> Starting mariadb in background
mariadb 18:32:45.04 INFO  ==> Stopping mariadb

Any ideas what the reason for this might be?

Start by reviewing the chart's values.yaml, especially the MariaDB auth settings and the auth.rootPassword option, then reproduce the deployment and inspect the nextcloud-mariadb pod logs. Done means the supported password configuration works and secrets are not hardcoded into values.yaml.