Bump styfle/cancel-workflow-action from 0.12.0 to 0.12.1 #919

Job	Run time
Build source distribution	21s
Build macOS/x86 wheels (3.8)	10m 50s
Build and test Linux wheels (python3.8)	9m 31s
Build macOS/x86 wheels (3.9)	7m 0s
Build and test Linux wheels (python3.9)	9m 33s
Build macOS/x86 wheels (3.10)	7m 12s
Build and test Linux wheels (python3.10)	9m 15s
Build macOS/x86 wheels (3.11)	10m 28s
Build and test Linux wheels (python3.11)	9m 43s
Build macOS/x86 wheels (3.12)	10m 40s
Build and test Linux wheels (python3.12)	9m 45s
Build package from source dist (3.8)	3m 34s
Build package from source dist (3.9)	3m 38s
Build package from source dist (3.10)	3m 33s
Build package from source dist (3.11)	3m 36s
Build package from source dist (3.12)	4m 9s
Test macOS/x86 wheels (3.8)	44s
Test macOS/x86 wheels (3.9)	42s
Test macOS/x86 wheels (3.10)	34s
Test macOS/x86 wheels (3.11)	30s
Test macOS/x86 wheels (3.12)	1m 0s
Upload to PyPI	22s
	1h 56m 40s

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