bench: Start nodes with -nodebuglogfile
Summary:
For benchmarking we don't want to depend on the speed of the disk or the amount of debug logging
This is a backport of Core PR18759
Depends on D9040.
Test Plan: ninja && src/bench/bitcoin-bench
Reviewers: #bitcoin_abc, Fabien
Reviewed By: #bitcoin_abc, Fabien
Differential Revision: https://reviews.bitcoinabc.org/D9041