Update ClickHouseDataTypeMapper.java: fix for working with bytebuffer #956

Job	Run time
build-kafka-lightweight / build	8m 32s
testflows-kafka / testflows-kafka	46m 9s
java-tests-kafka / java-kafka	1m 32s
java-tests-lightweight / java-lightweight	1h 35m 39s
testflows-lightweight / testflows-lightweight	1h 7m 1s
testflows-lightweight / testflows-lightweight-replicated	1h 15m 53s
	4h 54m 46s

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