toolshed: normalize SPDX paths with PureWindowsPath #3102

Job	Run time
ci-vars	1m 6s
should-skip	4s
Build ${{ matrix.host-platform }}, CUDA ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}	0s
Build ${{ matrix.host-platform }}, CUDA ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}	0s
Test ${{ matrix.host-platform }}	0s
Test ${{ matrix.host-platform }}	0s
Docs	0s
Build ${{ matrix.host-platform }}, CUDA ${{ needs.ci-vars.outputs.CUDA_BUILD_VER }}	-1s
Check job status	3s
Test ${{ matrix.host-platform }}	-1s
	1m 11s

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