Latest version of org.apache.kafka:kafka-streams-upgrade-system-tests-21
https://javadoc.io/doc/org.apache.kafka/kafka-streams-upgrade-system-tests-21
Current version 3.9.0
https://javadoc.io/doc/org.apache.kafka/kafka-streams-upgrade-system-tests-21/3.9.0
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.apache.kafka/kafka-streams-upgrade-system-tests-21/3.9.0/package-list