Fix flaky test tests/test_iotedgedev_simulator.py::test_start_single
- Dominant language
- Python
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Description
- iotedgedev Version: v3.3.4
- Python Version: 3.6
- Pip Version:
- Development machine OS Version: Ubuntu 18.04
- IoT Edge device OS Version: Ubuntu 18.04
This tests fails from time to time when trying to start container.
```
ERROR: ERROR: Could not start container: e310f76246c796795b7ec5bb48f05bb1b92055cac6f13b606e2d087774a70142 : 500 Server Error for http+docker://localhost/v1.41/containers/e310f76246c796795b7ec5bb48f05bb1b92055cac6f13b606e2d087774a70142/start: Internal Server Error ("driver failed programming external connectivity on endpoint input (6738c1f411ee5a9ec993229496b08ad0c11705b34d66082eb6b6b867c40ec3b5): Error starting userland proxy: listen tcp4 0.0.0.0:53000: bind: address already in use")
```
See [pipeline run](https://dev.azure.com/Azure-IoT-DDE-EdgeExperience/IoTEdgeDev/_build/results?buildId=3660&view=logs&j=f16e8fc0-2b38-5aca-c296-34ba72593acb&t=da71e463-5166-5e73-c87b-5383d0f8613f).
Steps to Reproduce:
1. Run the corresponding test.
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