TST: fix a test for windows+numpy1 - #16778

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Weird that our oldest deps job didn't fail in the other PR if it is a problem.

Oh wait... We don't run oldest deps on Windows. Never mind.

I can merge when you think it is ready to be taken out of draft.

Oh wait... We don't run oldest deps on Windows. Never mind.

Ah good point, I was wondering the same thing.