root/pypi: links for buckling

root/pypi buckling-2026b4.tar.gz
root/pypi buckling-2026b4-py3-none-any.whl
root/pypi buckling-2026b3.tar.gz
root/pypi buckling-2026b3-py3-none-any.whl
root/pypi buckling-2026b2.tar.gz
root/pypi buckling-2026b2-py3-none-any.whl