CI Failure (key symptom) in `OMBValidationTest.test_max_partitions`

[vbotbuildovich]

https://buildkite.com/redpanda/vtools/builds/13604

Module: rptest.redpanda_cloud_tests.omb_validation_test
Class: OMBValidationTest
Method: test_max_partitions

test_id:    OMBValidationTest.test_max_partitions
status:     FAIL
run time:   1829.485 seconds

CalledProcessError(1, ['tsh', 'ssh', '--proxy=proxy.tp.redpanda.com:443', '--auth=okta', '--identity=/tmp/machine-id/identity', 'redpanda@cou5onnof9l76uhaebig-agent', 'kubectl', 'config', 'current-context'])
Traceback (most recent call last):
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 184, in _do_run
    data = self.run_test()
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 276, in run_test
    return self.test_context.function(self.test)
  File "/home/ubuntu/redpanda/tests/rptest/services/cluster.py", line 178, in wrapped
    redpanda.raise_on_bad_logs(
  File "/home/ubuntu/redpanda/tests/rptest/services/redpanda.py", line 2165, in raise_on_bad_logs
    lsearcher.search_logs(self.pods)
  File "/home/ubuntu/redpanda/tests/rptest/services/utils.py", line 162, in search_logs
    bad_loglines = self._search(nodes)
  File "/home/ubuntu/redpanda/tests/rptest/services/utils.py", line 143, in _search
    for line in self._capture_log(node, self.match_expr):
  File "/home/ubuntu/redpanda/tests/rptest/services/utils.py", line 209, in _capture_log
    with KubeNodeShell(self.kubectl, node_name) as ksh:
  File "/home/ubuntu/redpanda/tests/rptest/clients/kubectl.py", line 309, in __init__
    self.current_context = self.kubectl.cmd(
  File "/home/ubuntu/redpanda/tests/rptest/clients/kubectl.py", line 170, in cmd
    return self._ssh_cmd(cmd)
  File "/home/ubuntu/redpanda/tests/rptest/clients/kubectl.py", line 157, in _ssh_cmd
    return self._local_cmd(self._ssh_prefix() + cmd)
  File "/home/ubuntu/redpanda/tests/rptest/clients/kubectl.py", line 147, in _local_cmd
    return subprocess.check_output(cmd, stderr=subprocess.PIPE)
  File "/usr/lib/python3.10/subprocess.py", line 421, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.10/subprocess.py", line 526, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['tsh', 'ssh', '--proxy=proxy.tp.redpanda.com:443', '--auth=okta', '--identity=/tmp/machine-id/identity', 'redpanda@cou5onnof9l76uhaebig-agent', 'kubectl', 'config', 'current-context']' returned non-zero exit status 1.

JIRA Link: CORE-2892