GH-50897: [Python] Fix typo LZ0 -> LZO in ORC writer docstring

[maupatel]

Rationale for this change

Fix a typo in the ORC writer compression docstring where LZ0 was incorrectly written instead of LZO.

What changes are included in this PR?

Change LZ0 to LZO in the python/pyarrow/orc.py documentation.

Are these changes tested?

Documentation-only change; no code behavior is affected.

Are there any user-facing changes?

No

• GitHub Issue: [Python] Typo in ORC writer docstring: LZ0 should be LZO #50897

[github-actions]

⚠️ GitHub issue #50897 has been automatically assigned in GitHub to PR creator.

[github-actions]

⚠️ GitHub issue #50897 has no components, please add labels for components.

[kou]

Could you use our PR template?

[Reranko05]

Please use this PR template for the description:

### Rationale for this change

Fix a typo in the ORC writer `compression` docstring where `LZ0` was incorrectly written instead of `LZO`.

### What changes are included in this PR?

Change `LZ0` to `LZO` in the `python/pyarrow/orc.py` documentation.

### Are these changes tested?

Documentation-only change; no code behavior is affected.

### Are there any user-facing changes?

Yes

- GitHub Issue: #50897

Once updated, you can mark the PR as ready for review.

[github-actions]

⚠️ GitHub issue #50897 has no components, please add labels for components.

[thisisnic]

For the sake of keeping things moving, I've made the update to the PR description myself. FWIW @maupatel in future, please feel free to make a PR for something like this with no associated issue and the "MINOR" prefix in the PR name. Thanks for spotting and updating!

[github-actions]

⚠️ GitHub issue #50897 has no components, please add labels for components.

[Copilot]

🟢 Approval recommended

The change is a straightforward documentation typo fix that matches the stated issue and does not affect runtime behavior.

Pull request overview

Fixes a user-facing documentation typo in the PyArrow ORC writer compression parameter docstring by correcting the codec name from LZ0 (invalid) to LZO (correct ORC compression algorithm name), aligning the docstring with expected terminology.

Changes:

• Correct LZ0 → LZO in the ORC writer compression docstring.

File summaries

File	Description
python/pyarrow/orc.py	Corrects a docstring typo for the ORC writer compression codec name (LZ0 → LZO).

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Lite

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