Set COVERAGE_CORE=sysmon
to speed up test on 3.12
#15905
Merged
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The 3.12 tests were running slow, so this PR sets
COVERAGE_CORE
for Python 3.12 tests. I learned about this setting in nedbat/coveragepy#1665. The 3.12 test run significantly faster now and have gone from the slowest to the fastest: