Unpin Cython version

[paleolimbot]

No description provided.

[codecov]

Codecov Report

Merging #46 (365fb19) into main (565b9b8) will increase coverage by 1.06%.
The diff coverage is 75.55%.

@@            Coverage Diff             @@
##             main      #46      +/-   ##
==========================================
+ Coverage   92.44%   93.50%   +1.06%     
==========================================
  Files          25       12      -13     
  Lines        4222     1540    -2682     
  Branches       59        0      -59     
==========================================
- Hits         3903     1440    -2463     
+ Misses        286      100     -186     
+ Partials       33        0      -33     

Files Changed	Coverage Δ
python/src/geoarrow/pyarrow/_compute.py	98.04% <ø> (ø)
python/src/geoarrow/pyarrow/_type.py	95.70% <ø> (ø)
python/src/geoarrow/_lib.pyx	86.63% <74.41%> (+1.76%)	⬆️
python/src/geoarrow/lib.py	100.00% <100.00%> (ø)
python/src/geoarrow/pyarrow/_kernel.py	94.25% <100.00%> (ø)

... and 13 files with indirect coverage changes