`test_interval_events` integration test is flaky

[jirimoravcik]

test_interval_events integration test is flaky

>       assert len(system_info_events) > 0
E       assert 0 > 0
E        +  where 0 = len([])

https://github.com/apify/apify-sdk-python/actions/runs/4125881666/jobs/7127065330

[fnesveda]

This was done in #55