chore(deps): update dependency cython to v3.1.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Cython (source)	==3.1.1 -> ==3.1.2

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Release Notes

cython/cython (Cython)

v3.1.2

Compare Source

==================

Bugs fixed

• Attribute lookups failed on the bool builtin type.
  (Github issue :issue:6905)

• Type checks on or-ed union types could incorrectly return false.
  (Github issue :issue:6420)

• Negative list indexing could accidentally wrap around twice in PyPy and the Limited API.

• Iterating over literal sequences with starred (unpacked) items could infer a wrong
  type for the loop variable and fail to assign the values.
  (Github issue :issue:6924)

• Calls to C functions taking exception types failed to check for a None argument.
  (Github issue :issue:6420)

• Fused functions had an incorrect __module__ attribute.
  (Github issue :issue:6897)

• The type of Cython implemented functions had an incorrect __module__ attribute.
  (Github issue :issue:6841)

• Errors while indexing into bytearray or str in nogil sections could crash.
  (Github issue :issue:6947)

• bytearray.append() could silently accept some invalid character numbers.

• The C++11 <type_traits> header was included regardless of the C++ version.
  (Github issue :issue:6896)

• PyDict_GetItemStringRef() was accidentally used in older Limited API versions.
  (Github issue :issue:6914)

• abort() was used but not always available in the Limited API.
  (Github issue :issue:6918)

• Some dependencies were missing from the depfile.
  (Github issue :issue:6938)

• Embedded function signatures were not always separated from the existing docstring.
  (Github issue :issue:6904)

• numpy.math was missing from Cython/Includes/ and could not be cimported.
  (Github issue :issue:6859)

• Some tests were adapted for NumPy 2.x.
  (Github issue :issue:6898)

• Some C compiler warnings were fixed.
  (Github issue :issue:6870)

• Cython.Build was not officially exposing the cythonize function.
  (Github issue :issue:6934)

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[ethanglaser]

/intelci: run