Upgrade to `time-machine` 2.13.0+ breaks our tests

[llucax]

What happened?

The tests, for example tests/actor/test_battery_status.py::TestBatteryStatus::test_async_battery_status, get stuck waiting forever if we upgrade to 2.13.0+.

What did you expect instead?

Tests work as with 2.12.0.

Affected version(s)

No response

Affected part(s)

Unit, integration and performance tests (part:tests), Build script, CI, dependencies, etc. (part:tooling)

Extra information

The problem seems to be that asyncio.sleep() breaks, and blocks forever. This needs investigation to see if it is something of our environment or a regression in time-machine.

A quick investigation shows that it is stuck only when tick=False, so it is probably related to the new support for the monotonic clock in 2.13.0, I guess now the monotonic clock stops now too and in 2.12.0 it didn't.

Related upstream issue:

• Test freezes in CI after upgrade to v2.13.0 from v2.12.0 adamchainz/time-machine#387

[RobMcKiernan]

Same issue here. Currently fixed it by pinning my timemachine version to 2.12.0

[llucax]

@RobMcKiernan you probably should add that to the time machine issue (adamchainz/time-machine#387).