dengziming created KAFKA-9353:
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Summary: Add groupInstanceId to DescribeGroup for better visibility
Key: KAFKA-9353
URL: https://issues.apache.org/jira/browse/KAFKA-9353
Project: Kafka
Issue Type: Improvement
Components: admin
Reporter: dengzimingKafka-8538 has already added `group.instance.id` to `MemberDescription` but didn't print it, so we just print it. -- This message was sent by Atlassian Jira (v8.3.4#803005)
