Test failure on Windows: `test_wait_until_transaction_delivered_raises_timeout`

[Karrenbelt]

trafficstars

example CI run: https://github.com/valory-xyz/open-autonomy/actions/runs/3330004683/jobs/5508153905

This fails only on windows because it does not raise a TimeoutException.

https://github.com/valory-xyz/open-autonomy/blob/9c71dc092e68de94bd7614fd0fac492185e272fb/packages/valory/skills/abstract_round_abci/tests/test_behaviours_utils.py#L1260-L1265

failure.log

I also wonder why we have implemented a custom error, and do not derive from the built-in TimeoutError. A comment in the code to explain such would be very useful.