Include boolean as a categorical type when selecting Oversampler

[eccabay]

Closes #2947

Fixes error where having exclusively categorical and boolean columns would have our oversampler selection code pick SMOTENC to use, when it should have been SMOTEN, throwing an error SMOTE-NC is not designed to work only with categorical features

[codecov]

Codecov Report

Merging #2980 (0c41c99) into main (ceeb0d9) will increase coverage by 0.1%.
The diff coverage is 100.0%.

@@           Coverage Diff           @@
##            main   #2980     +/-   ##
=======================================
+ Coverage   99.7%   99.7%   +0.1%     
=======================================
  Files        307     307             
  Lines      29244   29257     +13     
=======================================
+ Hits       29153   29166     +13     
  Misses        91      91             

Impacted Files	Coverage Δ
...es/components/transformers/samplers/oversampler.py	100.0% <100.0%> (ø)
evalml/tests/component_tests/test_oversampler.py	100.0% <100.0%> (ø)

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[angela97lin]

This looks good to me, good catch! Thank you 🙏

[freddyaboulton]

@eccabay Thank you for the quick fix! I think we just need the "Fixes #2947" in the pr description so that the original issue is closed out.

[chukarsten]

Great, quick fix. Thanks!!