Last batch logs missing when using xdist

[yakovbabich]

When running test execution with xdist, the last batch of logs is not appearing in the UI

pytest-reportportal 5.3.0
reportportal-client 5.5.3

In the implementation of pytest_sessionfinish in the plugin, last batch is being flushed only in the controller's finish_launch() method (which is make sense) and the service in each worker is stopped without performing last batch flushing. So in case, the worker has not flushed logs (due to batch size didn't reach max), those logs are not being sent to server and lost.

[HardNorth]

@yakovbabich OK, I'll add another flush on close.

[HardNorth]

Fixed in: https://github.com/reportportal/client-Python/releases/tag/5.5.4