LAVA v2 has deprecated the original ways to "attach" files generated by tests directly into the test results (c.f.  https://validation.linaro.org/static/docs/v2/lava_test_shell.html#test-attach)

Figure out a way to get files generated by test reults (e.g. raw logs, measurement data, video capture frames, audio files) from the DUT in order to be passed to the kCI backend via the callback.