feat: Allow passing of additional parameters to HF Inference clients in HuggingFaceAPIChatGenerator and HuggingFaceAPIGenerator

[sjrl]

Related Issues

• This fixes our failing HF API tests where the wrong provider is being used for the model we use in tests. See an example here
• fixes Support Inference Providers in HF API components #9350

Proposed Changes:

Allow passing of additional params to the underlying Inference clients through the already existing api_params variable. This now allows us to pass a provider like hf-inference which doesn't have the issue.

How did you test it?

Tested failing tests.

Notes for the reviewer

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test: and added ! in case the PR includes breaking changes.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[coveralls]

Pull Request Test Coverage Report for Build 15343971673

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 9 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.03%) to 90.371%

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Files with Coverage Reduction	New Missed Lines	%
components/generators/hugging_face_api.py	2	96.34%
components/generators/chat/hugging_face_api.py	7	95.63%

Totals
Change from base Build 15342244268:	0.03%
Covered Lines:	11460
Relevant Lines:	12681

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💛 - Coveralls

[anakin87]

Looks good.

This also fixes #9350, and I would refine the release note to emphasize that using different Inference Providers via the HF API is now supported in Haystack.