Bump versions and switch to uv

[cbouy]

• Bump minimum version for python to 3.9 (and rdkit in test pipeline)
• Use uv for installing pip dependencies

[codecov]

Codecov Report

Attention: Patch coverage is 85.09317% with 24 lines in your changes missing coverage. Please review.

Project coverage is 94.43%. Comparing base (b5e117b) to head (c3ef854).
Report is 24 commits behind head on master.

Files with missing lines	Patch %	Lines
prolif/plotting/complex3d.py	78.48%	17 Missing ⚠️
prolif/plotting/network.py	83.78%	6 Missing ⚠️
prolif/plotting/barcode.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #207      +/-   ##
==========================================
- Coverage   95.24%   94.43%   -0.82%     
==========================================
  Files          20       20              
  Lines        1409     1473      +64     
==========================================
+ Hits         1342     1391      +49     
- Misses         67       82      +15     

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