This provides some slight speedups to Pytest coverage testing by making 2 changes:

• Add a pytest flag topyproject.toml to use sys.monitoring if it is available. This can speed upcoverage.py. The reason is thatsys.monitoring (introduced in Python 3.12 via PEP 669) offers a more efficient way to monitor program execution, potentially leading to faster coverage measurement, especially for line coverage. This feature is only available for Python 3.12+, but it can be turned on always and warnings aboutnot having the sysmon feature can be ignored. Example of a project that found it useful:https://blog.trailofbits.com/2025/05/01/making-pypis-test-suite-81-faster/

• Change the directories included and excluded to be more selective and get only the directories that have Python test files consumed by Pytest. By changinginclude andomit values fortool.coverage.run, I get a small but consistent ~5% speedup (on a Linux system when running with-n 32).