Checking preemptive circuit predictions every 10s

I left an idle arti running and when I came back to that terminal I saw a window full of messages like this:

2023-06-16T14:38:12.660708Z DEBUG tor_circmgr: Checking preemptive circuit predictions.
2023-06-16T14:38:22.662960Z DEBUG tor_circmgr: Checking preemptive circuit predictions.
2023-06-16T14:38:32.664714Z DEBUG tor_circmgr: Checking preemptive circuit predictions.

This is not just noisy (although the noise is indeed poor and if that was the only problem I would suggest to downgrade that to trace). It also means arti is waking up every 10s to do housekeeping, even when there's nothing going on.

This is not desirable. Any polling ought to be considerably less frequent, to conserve energy.