KIP-1142 — Allow to list non-existent group which has dynamic config

Accepted Kafka 4.1 Admin

Extends `kafka-configs.sh --describe --all-groups` to include groups that have dynamic configuration but no active members or committed offsets. Currently, listing all groups' dynamic configs is impossible because `--all-groups` only surfaces groups known to the group coordinator, excluding groups that exist solely via config records.

Protocol Impact

ListConfigResources v1

Details