docs: fix ray initialization comment typo

[kmishra1204]

What does this PR do?

Fixes a typo in a Ray cleanup comment in src/llamafactory/train/tuner.py.

This is a docs/comment-only cleanup; runtime behavior is unchanged.

Before submitting

• Did you read the contributor guideline?
• Did you write any new necessary tests? N/A, comment-only typo fix.

Validation

• uvx --from codespell codespell src\\llamafactory\\train\\tuner.py
• uvx ruff check src\\llamafactory\\train\\tuner.py
• git diff --check

[gemini-code-assist]

Code Review

This pull request fixes a typo in a comment within src/llamafactory/train/tuner.py, correcting 'intialized' to 'initialized'. There are no review comments, and I have no feedback to provide.

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[kmishra1204]

Validated after a fresh fetch from upstream main.

• Branch: codex/fix-ray-comment-typo
• Status: 1 commit ahead, 0 behind upstream main
• Scope: src/llamafactory/train/tuner.py
• Checks run locally:
  • git diff --check origin/main...fork/codex/fix-ray-comment-typo
  • uv run --no-project --with ruff -- ruff check src/llamafactory/train/tuner.py

Both checks passed. No project dependency install or Docker run was used.