fix ci: account for huggingface transformers changes

[mattseddon]

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• 📖 If this PR requires documentation updates, I have created a separate PR (or issue, at least) in dvc.org and linked it here.

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This PR fixes the test_huggingface_integration test. Check the inline comment for an explanation.

Closes #768

[mattseddon]

My current theory is that a second instance of DVCLiveCallback is being attached to the Trainer.

[codecov-commenter]

Codecov Report

Attention: 30 lines in your changes are missing coverage. Please review.

Comparison is base (8406920) 88.79% compared to head (27e38cb) 95.55%.
Report is 16 commits behind head on main.

Files	Patch %	Lines
src/dvclive/fabric.py	82.66%	10 Missing and 3 partials ⚠️
tests/frameworks/test_fabric.py	83.33%	6 Missing ⚠️
src/dvclive/lightning.py	70.58%	3 Missing and 2 partials ⚠️
src/dvclive/utils.py	80.76%	4 Missing and 1 partial ⚠️
tests/frameworks/test_lightning.py	94.11%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #781      +/-   ##
==========================================
+ Coverage   88.79%   95.55%   +6.75%     
==========================================
  Files          53       55       +2     
  Lines        3357     3532     +175     
  Branches      294      314      +20     
==========================================
+ Hits         2981     3375     +394     
+ Misses        337      110     -227     
- Partials       39       47       +8     

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[mattseddon]

Docs are here. Having this set to the default of "all" seems to create a second instance of the DVCLiveCallback which causes duplicate entries to be logged in all of the metric files.

@dberenbaum is this something we need to be aware of for #740?

[mattseddon]

total_flos was also added as a metric before report_to is set to "none" (original failure)

[dberenbaum]

Good catch @mattseddon! Looks like it's causeg by testing the old callback that was part of dvclive along with transformers>=4.36.0, which auto reports using the new callback that's part of transformers. I will take a look for #740 and ask you to review.