* do not copy truststore, if "ssl.truststore.location" is set to empty string (e.g. ssl.truststore.location:{ENV_VARIABLE}) via KafkaBinderConfigurataionProperties.
* do not copy truststore, if "ssl.truststore.location" is set to empty string (e.g. ssl.truststore.location:{ENV_VARIABLE}) via KafkaBinderConfigurataionProperties.