Improve patches for transformers

[xadupre]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 39.33333% with 91 lines in your changes missing coverage. Please review.

Project coverage is 68.38%. Comparing base (f6ad410) to head (5076315).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...torch_export_patches/patches/patch_transformers.py	16.50%	86 Missing ⚠️
onnx_diagnostic/helpers.py	33.33%	2 Missing ⚠️
...gnostic/torch_export_patches/onnx_export_errors.py	95.23%	2 Missing ⚠️
onnx_diagnostic/torch_test_helper.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #16      +/-   ##
==========================================
- Coverage   69.50%   68.38%   -1.13%     
==========================================
  Files          47       47              
  Lines        3693     3717      +24     
==========================================
- Hits         2567     2542      -25     
- Misses       1126     1175      +49     

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