CI pipeline is failing on tests due Cekit/Python issue

Error Message

local variable 'exception_cause' referenced before assignment

Stacktrace

Failing step: Then run sh -c 'ls /home/kogito/.m2/repository/io/quarkus/quarkus-bom  | wc -l' in container and immediately check its output for 1 ... failed in 0.166s
Location: features/image/kogito-swf-builder.feature:12
Traceback (most recent call last):
  File "/home/jenkins/virtenvs/cekit/lib/python3.6/site-packages/behave/model.py", line 1329, in run
    match.run(runner.context)
  File "/home/jenkins/virtenvs/cekit/lib/python3.6/site-packages/behave/matchers.py", line 98, in run
    self.func(context, *args, **kwargs)
  File "steps/container_steps.py", line 280, in run_command_immediately_expect_message
    return run_command_expect_message(context, cmd, output_phrase, 0)
  File "steps/container_steps.py", line 337, in run_command_expect_message
    last_output, exception_cause)
UnboundLocalError: local variable 'exception_cause' referenced before assignment

Standard Output

@scenario.begin
  Scenario: verify if there is no dependencies with multiple versions in /home/kogito/.m2/repository
    When container is started with command bash ... passed in 11.897s
    Then run sh -c 'ls /home/kogito/.m2/repository/io/quarkus/quarkus-bom  | wc -l' in container and immediately check its output for 1 ... failed in 0.166s

@scenario.end
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