ENH: Initialize all arrays in `LabelSetUtils.h` file #100

Job	Run time
cxx-build-workflow / build-test-cxx (ubuntu-22.04)	9m 16s
cxx-build-workflow / build-test-cxx (windows-2022)	13m 11s
python-build-workflow / build-linux-arm-py (9)	4m 53s
cxx-build-workflow / build-test-cxx (macos-13)	11m 1s
python-build-workflow / build-linux-py (9, _2_28-x64)	2m 58s
cxx-build-workflow / build-test-cxx (macos-15)	5m 57s
python-build-workflow / build-linux-arm-py (10)	4m 34s
python-build-workflow / build-linux-py (9, 2014-x64)	3m 24s
python-build-workflow / build-linux-py (10, _2_28-x64)	3m 56s
python-build-workflow / build-linux-py (10, 2014-x64)	2m 33s
python-build-workflow / build-linux-arm-py (11)	4m 47s
python-build-workflow / build-macos-arm-py (9)	5m 15s
python-build-workflow / build-linux-py (11, _2_28-x64)	2m 34s
python-build-workflow / build-macos-arm-py (10)	5m 7s
python-build-workflow / build-linux-py (11, 2014-x64)	2m 27s
python-build-workflow / build-windows-python-packages (9)	12m 33s
python-build-workflow / build-macos-arm-py (11)	5m 15s
python-build-workflow / build-windows-python-packages (10)	7m 21s
python-build-workflow / build-windows-python-packages (11)	7m 30s
python-build-workflow / test-linux-notebooks	0s
python-build-workflow / publish-python-packages-to-pypi	16s
	1h 54m 48s

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