ENH: Fix path to python for nightly health CI

[aylward]

Summary by CodeRabbit

• Chores
  • Improved reliability of the nightly GPU Windows environment setup by explicitly selecting Python 3.11.
  • Prevented generated graphify-out files from appearing as untracked changes.

[Copilot]

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[coderabbitai]

Walkthrough

The Windows GPU health workflow now uses an explicit Python 3.11 executable to create its virtual environment. .gitignore also excludes the graphify-out path.

Changes

Windows health workflow

Layer / File(s)	Summary
Explicit Python 3.11 venv creation .github/workflows/nightly-health.yml	The GPU Windows job uses the explicit Python 3.11 executable instead of the py -3.11 launcher when creating the venv.

Generated output exclusions

Layer / File(s)	Summary
Ignore graphify-out output .gitignore	Adds graphify-out to the ignored paths.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• Project-MONAI/physiotwin4d#83: Updates the same workflow’s Windows GPU virtual environment Python selection.

Suggested reviewers: copilot

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: fixing the Python path used by the nightly health CI workflow.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.gitignore:
- Line 21: Update the graphify-out ignore rule to /graphify-out/ so it matches
only the repository-root output directory and does not exclude nested paths with
the same name.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 99562c78-801d-44b7-9861-804a6a950943

📥 Commits

Reviewing files that changed from the base of the PR and between dc6c81a and 7b59b50.

📒 Files selected for processing (2)

• .github/workflows/nightly-health.yml
• .gitignore