bump librdkafka after bugs were fixed

See confluentinc/librdkafka#5057

Author: olegrok

librdkafka

@@ -252,7 +252,7 @@ local function test_create_errors()
 
     log.info('Create with incompatible properties')
     local _, err = tnt_kafka.Consumer.create({brokers = '', options = {['reconnect.backoff.max.ms'] = '2', ['reconnect.backoff.ms'] = '1000'}})
-    assert(err == '`reconnect.backoff.max.ms` must be >= `reconnect.max.ms`')
+    assert(err == '`reconnect.backoff.max.ms` must be >= `reconnect.backoff.ms`')
 end
 
 return {

tests/consumer.lua

@@ -142,7 +142,7 @@ local function test_create_errors()
 
     log.info('Create with incompatible properties')
     local _, err = tnt_kafka.Producer.create({brokers = '', options = {['reconnect.backoff.max.ms'] = '2', ['reconnect.backoff.ms'] = '1000'}})
-    assert(err == '`reconnect.backoff.max.ms` must be >= `reconnect.max.ms`')
+    assert(err == '`reconnect.backoff.max.ms` must be >= `reconnect.backoff.ms`')
 end
 
 return {

tests/producer.lua

@@ -262,6 +262,7 @@ def test_consumer_should_partially_unsubscribe_from_topics():
 
         write_into_kafka("test_unsub_partially_1", (message1, ))
         write_into_kafka("test_unsub_partially_2", (message2, ))
+        time.sleep(2)
 
         # waiting up to 30 seconds
         response = server.call("consumer.consume", [30])[0]
@@ -275,6 +276,7 @@ def test_consumer_should_partially_unsubscribe_from_topics():
 
         write_into_kafka("test_unsub_partially_1", (message3, ))
         write_into_kafka("test_unsub_partially_2", (message4, ))
+        time.sleep(2)
 
         response = server.call("consumer.consume", [30])[0]