Fix pre-commit workflow syntax errors

[devin-ai-integration]

Summary

The run-precommit.yml workflow has been broken due to a YAML syntax error — the checkout step was missing the - name: list entry prefix, causing GitHub Actions to fail with a workflow file parse error.

This PR fixes the syntax and modernizes the workflow:

• Adds missing - name: Checkout and fixes indentation
• Updates actions/checkout v3 → v4 and actions/setup-python v4.3.0 → v5
• Updates Python from 3.8 → 3.10 (aligning with the Dockerfile update in Update Dockerfile to Python 3.10 for elementary-data 0.22+ compatibility #15)

Review & Testing Checklist for Human

• Verify the workflow runs successfully after merge (trigger manually via workflow_dispatch or push a .py file change)
• Confirm pre-commit hooks (black, isort, flake8) are compatible with Python 3.10

Notes

• Link to Devin session
• Requested by @haritamar

[devin-ai-integration]

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