Fix using data=None and hue array

[getzze]

Fix adding annotations with hue if arrays are provided instead of a Dataframe and column names as strings (data=None).

[codecov]

Codecov Report

Merging #64 (1524df8) into dev (bc0c4b8) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev      #64      +/-   ##
==========================================
+ Coverage   97.01%   97.04%   +0.02%     
==========================================
  Files          29       29              
  Lines        1877     1894      +17     
==========================================
+ Hits         1821     1838      +17     
  Misses         56       56              

Impacted Files	Coverage Δ
statannotations/_Plotter.py	97.38% <100.00%> (ø)
statannotations/_version.py	100.00% <100.00%> (ø)
statannotations/utils.py	100.00% <100.00%> (ø)
tests/test_annotator.py	100.00% <100.00%> (ø)
tests/test_plotter.py	100.00% <100.00%> (ø)
statannotations/Annotator.py	91.66% <0.00%> (ø)

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