Update cython requirement from <1 to <4 in /sdks/python

[dependabot]

Updates the requirements on cython to permit the latest version.

Changelog

Sourced from cython's changelog.

3.0.12 (2025-02-11)

Bugs fixed

• Release 3.0.11 introduced some incorrect noexcept warnings. (Github issue :issue:6335)

• Conditional assignments to variables using the walrus operator could crash. (Github issue :issue:6094)

• Dict assignments to struct members with reserved C names could generate invalid C code.

• Fused ctuples with the same entry types but different sizes could fail to compile. (Github issue :issue:6328)

• In Py3, pyximport was not searching sys.path when looking for importable source files. (Github issue :issue:5615)

• Using & 0 on integers produced with int.from_bytes() could read invalid memory on Python 3.10. (Github issue :issue:6480)

• Modules could fail to compile in PyPy 3.11 due to missing CPython specific header files. Patch by Matti Picus. (Github issue :issue:6482)

• Minor fix in C++ partial_sum() declaration.

3.0.11 (2024-08-05)

Features added

• The C++11 emplace* methods were added to libcpp.deque. Patch by Somin An. (Github issue :issue:6159)

Bugs fixed

• The exception check value of functions declared in pxd files was not always applied in 3.0.10. (Github issue :issue:6122)

• A crash on exception deallocations was fixed. (Github issue :issue:6022)

• A crash was fixed when assigning a zero-length slice to a memoryview. Patch by Michael Man. (Github issue :issue:6227)

... (truncated)

Commits

• c7dae70 Fix release date.
• b161c72 Prepare release of 3.0.12.
• 45c9825 Update changelog.
• b9a5b70 Exclude failing CI target macos-13/Py2.7.
• 07d7cc1 Fix spelling errors
• 0824349 Fix test in Py2.7.
• 20ebc99 Fix test in Py2.7.
• 20f6e4f Do not include CPython 'internal/*.h' files in PyPy (GH-6482)
• 0237382 Fix libcpp partial_sum definition
• 8522862 Backport ufunc Numpy2 fix
• Additional commits viewable in compare view

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