[BUG] Increased number of random test failures on GH actions

[mkorszun]

Describe the bug After migration to GH actions, I am observing an increased number of random test failures, mostly timeouts for PR checks.

To Reproduce Steps to reproduce the behavior:

• Check all completed actions: https://github.com/meltwater/gen_rmq/actions. The majority of them failed due to random, timeout issues
• My observations is that it mainly happens for OTP 23:
  • https://github.com/meltwater/gen_rmq/runs/1270908316?check_suite_focus=true
  • https://github.com/meltwater/gen_rmq/actions/runs/327295371

Expected behavior I expect them to pass. Random test failures happened on travis as well but not at such high rate.

Environment GH actions. Mostly for OTP 23 tests.

Additional context Add any other context about the problem here.

[akoutmos]

I'll take a look at this later in the week. I noticed this as well over the past couple PRs