build: fix import style for ModuleNotFoundError compatibility #2788

Job	Run time
ci-vars	52s
should-skip	4s
Build linux-aarch64, CUDA 13.2.0 / py3.12	4m 49s
Build win-64, CUDA 13.2.0 / py3.12	9m 50s
Build linux-64, CUDA 13.2.0 / py3.12	4m 45s
Docs / Build docs	8m 32s
Test linux-64 / compute-matrix	4s
Test linux-64 / py3.12, 13.2.0, wheels, l4	5m 4s
Test linux-aarch64 / compute-matrix	5s
Test linux-aarch64 / py3.12, 13.2.0, wheels, a100	5m 15s
Test win-64 / compute-matrix	5s
Test win-64 / py3.12, 13.2.0, local, a100 (TCC)	9m 34s
Check job status	3s
	49m 2s

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