Migrate to ruff (#50)

[aazuspan]

No description provided.

[codecov-commenter]

Codecov Report

Merging #51 (3421008) into main (42ac9f2) will decrease coverage by 0.33%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##             main      #51      +/-   ##
==========================================
- Coverage   86.84%   86.51%   -0.33%     
==========================================
  Files           6        6              
  Lines         304      304              
==========================================
- Hits          264      263       -1     
- Misses         40       41       +1     

Impacted Files	Coverage Δ
sankee/datasets.py	95.12% <100.00%> (ø)
sankee/plotting.py	80.28% <100.00%> (ø)
sankee/sampling.py	87.87% <100.00%> (-3.04%)	⬇️
sankee/themes.py	93.33% <100.00%> (ø)
sankee/utils.py	85.18% <100.00%> (ø)

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