Fix check of unecessary packages (issue #37626)

[HichTala]

What does this PR do?

This pull request updates the get_imports function in src/transformers/dynamic_module_utils.py to improve how conditional imports are handled. The most important change introduces a check for functions in transformers.utils.import_utils to ensure imports in specific conditional blocks are ignored.

Enhancements to conditional import handling:

• src/transformers/dynamic_module_utils.py: Added a reference to transformers.utils and updated the logic in the recursive_look_for_imports function to ignore imports in conditional blocks that use functions from transformers.utils.import_utils, in addition to the existing check for is_flash_attn functions.

Fixes # (issue)

• check_imports unnecessarily verifies packages that may not be needed #37626

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@Rocketknight1

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[Rocketknight1]

Hi @HichTala. thanks for the updates. This looks good now, so I'm going to merge!

[HichTala]

My pleasure

[HichTala]

I think, yesterday one of the test didn't pass, I'm not sure of want changed, can you enlighten me ? 😅

[Rocketknight1]

hi @HichTala, that was probably just a flaky test! I reran the tests and it passed afterwards. We're working on making the CI more robust so that stops happening

[HichTala]

Hi @Rocketknight1, ok notted thank you 👍