Investigate logging configuration and logging tests

@Jimvin discovered problems with configuring logging.

Configuring logging on role level did not work, role group level worked with the following config:

  journalNodes:
    roleGroups:
      default:
        replicas: 3
        config:
          logging:
            enableVectorAgent: true
            containers:
              journalnode:
                loggers:
                  ROOT:
                    level: DEBUG
                console:
                  level: DEBUG
    configOverrides: *configOverrides

In the logging tests we use the hdfs container https://github.com/stackabletech/hdfs-operator/blob/526f58925ca0ea0f543819f05516d3b70e1e28f3/tests/templates/kuttl/logging/04-install-hdfs-automatic-log.yaml.j2#L31.

Looking at the code, it seems to be hdfs as well:

• https://github.com/stackabletech/hdfs-operator/blob/526f58925ca0ea0f543819f05516d3b70e1e28f3/rust/crd/src/lib.rs#L1036
• https://github.com/stackabletech/hdfs-operator/blob/526f58925ca0ea0f543819f05516d3b70e1e28f3/rust/crd/src/lib.rs#L1174
• https://github.com/stackabletech/hdfs-operator/blob/526f58925ca0ea0f543819f05516d3b70e1e28f3/rust/crd/src/lib.rs#L1296
• https://github.com/stackabletech/hdfs-operator/blob/526f58925ca0ea0f543819f05516d3b70e1e28f3/rust/operator-binary/src/product_logging.rs#L156

Not sure how that can work, this needs investigation.

Start with the logging test template at tests/templates/kuttl/logging/04-install-hdfs-automatic-log.yaml.j2 and the referenced Rust definitions in rust/crd/src/lib.rs and rust/operator-binary/src/product_logging.rs. Compare role-level and role-group logging configuration, then run the logging tests to determine why the hdfs container configuration appears to work and what needs changing.