Update geopandas

[christophfink]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 94.44444% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 83.07%. Comparing base (c7dd186) to head (d568bf7).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/cartogram/cartogram.py	94.11%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main       #7       +/-   ##
===========================================
- Coverage   97.36%   83.07%   -14.30%     
===========================================
  Files           2        2               
  Lines         114      130       +16     
===========================================
- Hits          111      108        -3     
- Misses          3       22       +19     

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