Assertion Error in PartitionBalancerTest.test_unavailable_nodes

[r-vasquez]

Build : https://buildkite.com/redpanda/redpanda/builds/13945#018289c6-bd94-4590-9d85-eb7aa0594027

test_id:    rptest.tests.partition_balancer_test.PartitionBalancerTest.test_unavailable_nodes
--
  | status:     FAIL
  | run time:   5 minutes 19.837 seconds
  |  
  |  
  | AssertionError()
  | Traceback (most recent call last):
  | File "/usr/local/lib/python3.10/dist-packages/ducktape/tests/runner_client.py", line 135, in run
  | data = self.run_test()
  | File "/usr/local/lib/python3.10/dist-packages/ducktape/tests/runner_client.py", line 227, in run_test
  | return self.test_context.function(self.test)
  | File "/root/tests/rptest/services/cluster.py", line 35, in wrapped
  | r = f(self, *args, **kwargs)
  | File "/root/tests/rptest/tests/partition_balancer_test.py", line 225, in test_unavailable_nodes
  | self.check_no_replicas_on_node(node)
  | File "/root/tests/rptest/tests/partition_balancer_test.py", line 137, in check_no_replicas_on_node
  | assert self.redpanda.idx(node) not in node2pc
  | AssertionError
  |  

[jcsp]

Very similar to #5950

[ztlpn]

should have been fixed by #6007