Flaky test: tests/sentry/workflow_engine/test_integration.py::TestWorkflowEngineIntegrationFromErrorPostProcess::test_slow_condition_workflow_with_conditions

Failing test: `tests/sentry/workflow_engine/test_integration.py::TestWorkflowEngineIntegrationFromErrorPostProcess::test_slow_condition_workflow_with_conditions`
Sentry sha: 4a8dadc9c184ad93a761561c5f57437a29cd3300
Run: https://github.com/getsentry/sentry/actions/runs/22283662803

```
tests/sentry/workflow_engine/test_integration.py:379: in test_slow_condition_workflow_with_conditions
mock_trigger.assert_called_once()
/opt/hostedtoolcache/Python/3.13.1/x64/lib/python3.13/unittest/mock.py:956: in assert_called_once
raise AssertionError(msg)
E AssertionError: Expected 'apply_async' to have been called once. Called 0 times.
```

Start with tests/sentry/workflow_engine/test_integration.py, especially test_slow_condition_workflow_with_conditions around the failing mock_trigger.assert_called_once() at line 379. Run the named test and inspect the surrounding workflow integration setup to determine why apply_async is called zero times. Done means the test passes reliably with the expected call.

Written by the indexing model from the issue text.