fix: make clear that error is configuration issue not server error (#… #13

Job	Run time
Test with Kafka 1.0.2 / Test with Kafka 1.0.2	7m 11s
Test with Kafka 2.0.1 / Test with Kafka 2.0.1	8m 0s
Test with Kafka 2.2.2 / Test with Kafka 2.2.2	15m 1s
Test with Kafka 2.6.2 / Test with Kafka 2.6.2	9m 32s
Test with Kafka 2.8.2 / Test with Kafka 2.8.2	8m 23s
Test with Kafka 3.0.2 / Test with Kafka 3.0.2	8m 4s
Test with Kafka 3.3.2 / Test with Kafka 3.3.2	8m 25s
Test with Kafka 3.5.1 / Test with Kafka 3.5.1	9m 15s
	1h 13m 51s

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