Surpress warnings in target encoder

[freddyaboulton]

Pull Request Description

Fix nightlies. Surpress warnings in target encoder due to scikit-learn-contrib/category_encoders#327

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After creating the pull request: in order to pass the release_notes_updated check you will need to update the "Future Release" section of docs/source/release_notes.rst to include this pull request by adding :pr:123.

[freddyaboulton]

We could also change the default value of smoothing and add min_samples_leaf parameter but there is still some discussion as to what the new defaults should be so figured it was better to suppress the warnings

[jeremyliweishih]

agreed!

[codecov]

Codecov Report

Merging #3540 (0d7d84b) into main (0377407) will increase coverage by 0.1%.
The diff coverage is 100.0%.

@@           Coverage Diff           @@
##            main   #3540     +/-   ##
=======================================
+ Coverage   99.7%   99.7%   +0.1%     
=======================================
  Files        335     335             
  Lines      33263   33267      +4     
=======================================
+ Hits       33135   33139      +4     
  Misses       128     128             

Impacted Files	Coverage Δ
...components/transformers/encoders/target_encoder.py	100.0% <100.0%> (ø)

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[jeremyliweishih]

thank you!