[WIP] Updates to YB for sklearn v1

[rebeccabilbro]

This PR updates a few baseline images and makes some other small edits to get yellowbrick working with scikit-learn v1.

I have made the following changes:

1. updated baseline images (not really sure why some failed and not others, but the tol failures were huge, like >30 rmse, so I just updated them)
2. updated calls to Bernoulli, make_blobs, and load_iris
3. removed try/except pattern from some older tests
4. updated test requirements.txt

TODOs and questions

Still to do:

• [ ] adjust tolerances depending on how the tests go in CI
• [ ] update pandas, numpy, and scipy too
• [ ] check to see if we need to up the docs also (eg bump the sklearn version inside the docs dir and update usage of iris and blobs)

CHECKLIST

• [x] Is the commit message formatted correctly?
• [ ] Have you noted the new functionality/bugfix in the release notes of the next release?
• [ ] Included a sample plot to visually illustrate your changes?
• [x] Do all of your functions and methods have docstrings?
• [x] Have you added/updated unit tests where appropriate?
• [x] Have you updated the baseline images if necessary?
• [x] Have you run the unit tests using pytest?
• [x] Is your code style correct (are you using PEP8, pyflakes)?
• [ ] Have you documented your new feature/functionality in the docs?
• [ ] Have you built the docs using make html?

[codecov[bot]]

Codecov Report

Merging #1197 (33149a8) into develop (2eb8e3e) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 33149a8 differs from pull request most recent head fe91135. Consider uploading reports for the commit fe91135 to get more accurate results

@@           Coverage Diff            @@
##           develop    #1197   +/-   ##
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  Coverage    90.43%   90.43%           
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  Files           90       90           
  Lines         5089     5089           
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  Hits          4602     4602           
  Misses         487      487           

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