fix comparison with NaNs

[shouples]

Previous tests broke for geodataframes since comparing the geometry columns that contained Point(value, NaN) would evaluate to false and not match correctly.

FAILED tests/test_renderable_types.py::TestRenderableTypes::test_non_pandas_dataframes[simple-True-geopandas] - AssertionError: assert 'unk_datafram...4d0eb41b576e7' == 'test_df'
    - test_df
    + unk_dataframe_94faf76d674849278374d0eb41b576e7
assert False

[codecov-commenter]

Codecov Report

Merging #285 (3688ad9) into main (69b04b8) will increase coverage by 0.00%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

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@@           Coverage Diff           @@
##             main     #285   +/-   ##
=======================================
  Coverage   83.97%   83.97%           
=======================================
  Files          84       84           
  Lines        3026     3027    +1     
=======================================
+ Hits         2541     2542    +1     
  Misses        485      485           

Files Changed	Coverage Δ
src/dx/utils/tracking.py	97.75% <100.00%> (+0.02%)	⬆️

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