Kafka Error in `TransactionsTest.graceful_leadership_transfer_test` on nightly

[NyaliaLui]

Version & Environment

Redpanda version: dev on nightly CDT:

https://buildkite.com/redpanda/vtools/builds/4182#01845f80-c176-4aa4-b55c-816b614deec6/6-8089

   KafkaException(KafkaError{code=UNKNOWN,val=-1,str="EndTxn commit failed: Unknown broker error"})
Traceback (most recent call last):
  File "/home/ubuntu/.local/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 135, in run
    data = self.run_test()
  File "/home/ubuntu/.local/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 227, in run_test
    return self.test_context.function(self.test)
  File "/home/ubuntu/redpanda/tests/rptest/services/cluster.py", line 35, in wrapped
    r = f(self, *args, **kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/tests/transactions_test.py", line 320, in graceful_leadership_transfer_test
    producer.commit_transaction()
cimpl.KafkaException: KafkaError{code=UNKNOWN,val=-1,str="EndTxn commit failed: Unknown broker error"}

[NyaliaLui]

Again on ARM on nightly https://buildkite.com/redpanda/vtools/builds/4201#018463f2-bed8-437b-af13-fa9cc677ecaf/6-7729 https://buildkite.com/redpanda/vtools/builds/4196#01846250-d53f-473f-83be-eb6536cfa36f/6-7669

[andijcr]

arm cdt: https://buildkite.com/redpanda/vtools/builds/4255#018477c1-dbc9-454c-bd32-fa3b114f7df8

[rishabh96b]

amd cdt: https://buildkite.com/redpanda/vtools/builds/4269#01847bb7-c885-4b7c-bfd2-857879309e1d

[andijcr]

amd cdt: 1 FAIL test: TransactionsTest.graceful_leadership_transfer_test (1/18 runs) 2 failure at 2022-11-18T14:42:22.575Z: KafkaException(KafkaError{code=UNKNOWN,val=-1, str="EndTxn commit failed: Unknown broker error"}) 3 in job https://buildkite.com/redpanda/vtools/builds/4312#018489c4-806d-40af-b36 4-fd8e3cd49a22

[jcsp]

This is a very frequent failure:

FAIL test: TransactionsTest.graceful_leadership_transfer_test (3/4 runs) failure at 2022-11-23T14:46:52.114Z: KafkaException(KafkaError{code=UNKNOWN,val=-1,str="EndTxn commit failed: Unknown broker error"}) on (amd64, VM) in job https://buildkite.com/redpanda/vtools/builds/4361#0184a383-6120-4cfe-849f-20fd922fc70f failure at 2022-11-23T00:09:49.571Z: KafkaException(KafkaError{code=UNKNOWN,val=-1,str="EndTxn commit failed: Unknown broker error"}) on (?arch?, VM) in job https://buildkite.com/redpanda/vtools/builds/4352#0184a05e-e39a-4cca-9bb1-ac604e541863 failure at 2022-11-22T15:12:22.822Z: KafkaException(KafkaError{code=UNKNOWN,val=-1,str="EndTxn commit failed: Unknown broker error"}) on (amd64, VM) in job https://buildkite.com/redpanda/vtools/builds/4345#01849e5e-c25f-42d3-9369-b80ed245db57