do not hide error stack-trace while retrying

[dfakhritdinov]

No description provided.

[dfakhritdinov]

Example of current logs:

13:13:11.659 [io-compute-blocker-8] WARN  a.b.c.XXX -- failed, retrying in 10 seconds, error: org.apache.kafka.common.KafkaException: Failed to construct kafka consumer

while the cause of the retries was hidden in stack-trace:

13:13:11.650 [io-compute-blocker-8] ERROR c.e.a.s.wallet.service.Currencies -- consumer failed
org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
	at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:823)
	at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:665)
	at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:646)
        ...
	at ref @ fs2.Compiler$Target$ConcurrentTarget.ref(Compiler.scala:195)
	at apply @ fs2.Stream.parEvalMapAction(Stream.scala:2122)
	at ref @ fs2.Compiler$Target$ConcurrentTarget.ref(Compiler.scala:195)
	at apply @ fs2.Stream.parEvalMapAction(Stream.scala:2122)
	at ref @ fs2.Compiler$Target$ConcurrentTarget.ref(Compiler.scala:195)
        ...
Caused by: org.apache.kafka.common.errors.InvalidConfigurationException: enable.auto.commit cannot be set to true when default group id (null) is used.