fix resource_tracker warning on OSX #934

Job	Run time
lint	34s
cleanup_buckets	24s
build	30s
test-docker	5m 17s
test-windows-bundle (windows-2019)	8m 47s
test-linux-bundle	7m 9s
test-windows-bundle (windows-latest)	9m 5s
test (ubuntu-latest, 3.7)	9m 11s
test (ubuntu-latest, 3.8)	53s
test (ubuntu-latest, 3.9)	52s
test (ubuntu-latest, 3.10)	50s
test (ubuntu-latest, 3.11)	47s
test (ubuntu-latest, 3.12)	4m 16s
test (ubuntu-latest, pypy-3.10-nightly)	7m 58s
test (macos-latest, 3.7)	9m 27s
test (macos-latest, 3.8)	1m 43s
test (macos-latest, 3.9)	1m 22s
test (macos-latest, 3.10)	1m 6s
test (macos-latest, 3.11)	1m 8s
test (macos-latest, 3.12)	7m 40s
test (windows-latest, 3.7)	7m 8s
test (windows-latest, 3.8)	1m 22s
test (windows-latest, 3.9)	1m 37s
test (windows-latest, 3.10)	1m 40s
test (windows-latest, 3.11)	1m 38s
test (windows-latest, 3.12)	9m 58s
doc	1m 16s
	1h 43m 38s

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