[3.14] gh-130317: Fix SNaN broken tests on HP PA RISC (GH-140452) (#140467)

[3.14] gh-130317: Fix SNaN broken tests on HP PA RISC (GH-140452) (#140467)

gh-130317: Fix SNaN broken tests on HP PA RISC (GH-140452)

While looking at GH-140028, I found some unrelated test regressions in the
3.14 cycle. These seem to all come from GH-130317. From what I can tell,
that made Python more correct than it was before. According to [0], HP PA
RISC uses 1 for SNaN and thus a 0 for QNaN.

[0]: https://grouper.ieee.org/groups/1788/email/msg03272.html
(cherry picked from commit 76fea5596c235a7853cda8df87c3998d506e950c)

Co-authored-by: Stefano Rivera <stefano@rivera.za.net>