Code review comment for autopkgtest-cloud:lpci-run-unit-tests

I don't know if it will be helpful but this is what I see during a pass when running it locally:

2023-09-15 09:45:31.165 :: Ran 58 tests in 1.574s
2023-09-15 09:45:31.165 ::
2023-09-15 09:45:31.165 :: OK
2023-09-15 09:45:31.165 :: [call.Request(url='https://example.com', method='POST', data=b'{"bar": 2}', headers={'Content-Type': 'application/json', 'Authorization': 'Basic dXNlcjpzM2tyMXQ='}),
2023-09-15 09:45:31.165 :: call.urlopen(<MagicMock name='request.Request()' id='140119115375952'>),
2023-09-15 09:45:31.165 :: call.urlopen().__enter__(),
2023-09-15 09:45:31.165 :: call.urlopen().__enter__().geturl(),
2023-09-15 09:45:31.165 :: call.urlopen().__enter__().getcode(),
2023-09-15 09:45:31.166 :: call.urlopen().__enter__().read(),
2023-09-15 09:45:31.166 :: call.urlopen().__exit__(None, None, None)]