gh-72073: Clarify pathlib rename() and replace() docs

[purushothamanlabi]

Summary

Clarify the difference between pathlib.Path.rename() and pathlib.Path.replace() by documenting their overwrite behavior and the underlying os.rename() / os.replace() semantics.

Testing

• not run (documentation-only change; local Sphinx tooling was not installed in this environment)

[python-cla-bot]

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[read-the-docs-community]

Documentation build overview

📚 cpython-previews | 🛠️ Build #32516286 | 📁 Comparing 2391cd0 against main (836fbda)

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1 file changed

± library/pathlib.html

[picnixz]

Path.rename is already clear and already documents what needs to be documented. The issue was also closed as completed and this looks an LLM generated PR which we forbid unless reviewed by a human and (at least acknowledged): https://matplotlib.org/devdocs/devel/contribute.html#generative-ai.