build: Move Azure's Form Recognizer dependency to extras

[julian-risch]

Related Issues

• related Extract dependencies from core list #4417

Proposed Changes:

• Move Azure Form Recognizer dependency from core dependencies to existing file conversion extra because it's only used in one FileConverter called AzureConverter.

How did you test it?

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:.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[ZanSara]

Hey @julian-risch! There are no conditional/lazy imports to make after this dependency has moved into the extras? I think right now it doesn't seem like, but only because generalimport is hiding the failure. You may want to wait for #5084 so we're sure it's all working fine.

[coveralls]

Pull Request Test Coverage Report for Build 5242021282

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 73 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+0.1%) to 40.909%

---

Files with Coverage Reduction	New Missed Lines	%
agents/base.py	5	91.25%
nodes/search_engine/web.py	9	57.58%
nodes/file_converter/azure.py	59	15.17%

Totals
Change from base Build 5210017042:	0.1%
Covered Lines:	9176
Relevant Lines:	22430

---

💛 - Coveralls

[julian-risch]

@ZanSara You mean adding sth like what we have for other imports relying on extras?

try:
    from azure.ai.formrecognizer import DocumentAnalysisClient, AnalyzeResult
    from azure.core.credentials import AzureKeyCredential
except ImportError as exc:
    logger.debug(
        "azure.ai.formrecognizer or azure.core.credentials could not be imported. "
        "Run 'pip install farm-haystack[file-conversion]' or 'pip install azure-ai-formrecognizer>=3.2.0b2' to fix this issue."
    )

[ZanSara]

Yes! I didn't check right now, but if they're already try-catched like in the snippet you shared, then it's alright

[ZanSara]

Great! 🚢