fix: Fixes Issue 89 with missing find_module

[mgorsk1]

What kind of change does this PR introduce?

• Bugfix
• New Feature
• Feature Improvment
• Refactoring
• Documentation
• Other, please describe:

Description:

Fixes #89

Checklist:

• I have read the CONTRIBUTING document.
• My changes don't require a change to the documentation, or if they do, I've added all required information.

[mgorsk1]

gentleman can you help me out prioritizing this fix? @lukasmasuch @raethlein @JanKalkan

[Copilot]

Pull Request Overview

This PR fixes issue #89 by replacing deprecated find_module calls with a new get_module helper function and updates the minimum Python version requirement from 3.6 to 3.9.

• Introduces a new get_module helper function using find_spec instead of the deprecated find_module
• Updates minimum Python version requirement from 3.6 to 3.9 in setup.py and README
• Adds integration test coverage for the generate_docs function

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/lazydocs/generation.py	Introduces get_module helper function and replaces deprecated find_module calls
setup.py	Updates minimum Python version requirement from 3.6 to 3.9
README.md	Updates documentation to reflect new Python 3.9+ requirement
tests/test_generation.py	Adds integration test for generate_docs function

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[Copilot]

The function may raise an AttributeError if spec.loader is None. Consider adding a null check for spec.loader before calling load_module.

Suggested change

	def get_module(loader, module_name: str) -> Optional[Any]:
	spec = loader.find_spec(module_name)
	if spec is None:
	raise ImportError(f"Cannot find module {module_name}")
	raise ImportError(f"Cannot find module {module_name}")
	if spec.loader is None:
	raise ImportError(f"Cannot load module {module_name}: spec.loader is None")

[Copilot]

The load_module method is deprecated. Consider using importlib.util.module_from_spec and spec.loader.exec_module pattern that's already used in the main code paths.

Suggested change

	return spec.loader.load_module(spec.name)
	module = importlib.util.module_from_spec(spec)
	spec.loader.exec_module(module)
	return module