Pypy testing no longer xfails (#6077)

* test passes on PyPy macOS

* adjust tests for pypy HEAD

* fixes from review

* pypy 7.3.23 was released, drop some PyPy testing

* pin to pypy version 7.3.23

* Restore xfail for cross-module translator platforms

Keep the expected failure for Android and FreeBSD while limiting the PyPy-specific part to versions before 7.3.23. Android CIBW still raises RuntimeError for this test, matching the existing tracked platform issue.

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Co-authored-by: Ralf W. Grosse-Kunstleve <rgrossekunst@nvidia.com>