cancellation file support for bluebox #1370

Job	Run time
sdist - Ubuntu 3.9 Intel	14s
Check - Ubuntu 3.9 Intel	12s
Wheel - macOS 3.8 ARM	1m 25s
Wheel - macOS 3.8 Intel	1m 46s
Wheel - macOS 3.9 ARM	1m 25s
Wheel - macOS 3.9 Intel	3m 38s
Wheel - macOS 3.10 ARM	1m 32s
Wheel - macOS 3.10 Intel	1m 57s
Wheel - macOS 3.11 ARM	1m 39s
Wheel - macOS 3.11 Intel	2m 18s
Wheel - macOS 3.12 ARM	2m 1s
Wheel - macOS 3.12 Intel	1m 32s
Wheel - Ubuntu 3.8 ARM	2m 52s
Wheel - Ubuntu 3.8 Intel	3m 9s
Wheel - Ubuntu 3.9 ARM	3m 14s
Wheel - Ubuntu 3.9 Intel	3m 23s
Wheel - Ubuntu 3.10 ARM	3m 16s
Wheel - Ubuntu 3.10 Intel	3m 15s
Wheel - Ubuntu 3.11 ARM	4m 59s
Wheel - Ubuntu 3.11 Intel	3m 10s
Wheel - Ubuntu 3.12 ARM	2m 54s
Wheel - Ubuntu 3.12 Intel	3m 9s
Wheel - Windows 3.8 Intel	1m 59s
Wheel - Windows 3.9 Intel	2m 16s
Wheel - Windows 3.10 Intel	1m 43s
Wheel - Windows 3.11 Intel	1m 55s
Wheel - Windows 3.12 Intel	2m 28s
Upload to PyPI - ${{ matrix.os.name }} ${{ matrix.python.major-dot-minor }} ${{ matrix.arch.name }}	0s
	1h 3m 21s

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