[MAINT] Update Ctypes in line with scikit-learn: main

[adam2392]

Changes proposed in this pull request:

• related to ctypedefs in scikit-learn main (RFC Guideline for usage of Cython types scikit-learn/scikit-learn#25572) and MAINT Replace double with float64_t inside tree submodule scikit-learn/scikit-learn#27539

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[adam2392]

Relies on scikit-learn v1.4 release

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (eb946d4) 89.76% compared to head (97af881) 89.73%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #141      +/-   ##
==========================================
- Coverage   89.76%   89.73%   -0.03%     
==========================================
  Files          41       41              
  Lines        3351     3352       +1     
==========================================
  Hits         3008     3008              
- Misses        343      344       +1     

Files	Coverage Δ
sktree/__init__.py	77.77% <0.00%> (-3.00%)	⬇️

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