chore: strip redundant setup-python from codeql (baked into runner)

[27Bslash6]

Runner v0.3.0 has Python 3.9-3.14 baked in. No need for setup-python on cachekit self-hosted runners.

Summary by CodeRabbit

• Chores
  • Simplified the CodeQL CI workflow for Python analysis so it proceeds directly to installing dependencies and running the scan.
  • Removed the explicit Python setup step from the Python analysis path, streamlining the job flow and reducing workflow steps.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2e294821-928b-4603-bc25-8581a4505994

📥 Commits

Reviewing files that changed from the base of the PR and between dc9413c and c46ab3a.

📒 Files selected for processing (1)

• .github/workflows/codeql.yml

💤 Files with no reviewable changes (1)

• .github/workflows/codeql.yml

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📝 Walkthrough

Walkthrough

The CodeQL workflow no longer includes a conditional step that explicitly sets up Python 3.12 for Python-language analysis. The workflow now skips the actions/setup-python@v5 action and relies on the pre-existing Python environment.

Changes

CodeQL Workflow Simplification

Layer / File(s)	Summary
Workflow Step Removal .github/workflows/codeql.yml	Conditional Python setup step (actions/setup-python@v5 pinned to Python 3.12) is removed from the language-specific analysis job.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 Adjusts whiskers thoughtfully
One setup step hops away,
Python finds its own way—
CodeQL's dance, unhindered today! ✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The PR description is minimal and does not follow the repository's template structure with required sections like Description, Motivation, Type of Change, or Security Checklist.	Expand description to follow the template: add a brief summary section, explain motivation (why setup-python is redundant), select the appropriate Type of Change (CI/CD change), and complete applicable checklists.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately reflects the main change: removing redundant setup-python action from the CodeQL workflow because Python is already available in the runner.
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.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/strip-redundant-setup

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

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