clearml: pkg messages breaks doctests

We have some problems with Trains pushing messages via sys.stdout instead commonly used sys.stderr. The case is with doctests where the output is compared to the expected value and with just minor package update a message text change it breaks our tests like this example:

064         >>> logger.log_metrics({"val_loss": 1.23}, step=0)
Expected nothing
Got:
    TRAINS new version available: upgrade to v0.14.1rc2 is recommended!

a simples solution on our side is to freeze version but it would limit Trains users so I would appreciate to change the streaming channel or be able to configure it https://github.com/PyTorchLightning/pytorch-lightning/pull/1087/checks?check_run_id=532067360