AdminApi Incorrect Arg Flag

This function doesn't seem correct, it looks like the field was moved to: redpanda.admin-api.authentication.basic.password

// RegisterFlags for sensitive Admin API configurations.
func (c *RedpandaAdminAPI) RegisterFlags(flags *flag.FlagSet) {
	flags.BoolVar(&c.Enabled, "redpanda.admin-api.password", c.Enabled, "Basic Auth password to authenticate against the Redpanda Admin API")
}

Also, it doesn't look like the redpanda configs are being included in the flag set?

// RegisterFlags for all (sub)configs
func (c *Config) RegisterFlags(f *flag.FlagSet) {
	f.StringVar(&c.ConfigFilepath, "config.filepath", "", "Path to the config file")
	f.BoolVar(&c.StrictConfigValidation, "config.strict-validation", true, "Strict validation rejects unknown variables in the provided YAML config")

	// Package flags for sensitive input like passwords
	c.Kafka.RegisterFlags(f)
	c.Serde.RegisterFlags(f)
	c.Console.RegisterFlags(f)
	c.KafkaConnect.RegisterFlags(f)
	c.SchemaRegistry.RegisterFlags(f)
}

Start by locating RedpandaAdminAPI.RegisterFlags and Config.RegisterFlags, then compare the registered flag names and fields with the current configuration structure. The fix is complete when the Admin API password flag targets the authentication.basic.password field and the Redpanda configuration registrations are included in the flag set.