chore(deps): Update GitHub Actions to v6.3.0

[williaby]

Summary

Why

Scheduled patch update, bug fixes and security patches with no API changes.

Changes

This PR contains the following updates:

Package	Type	Update	Change	OpenSSF
actions/setup-python	action	minor	v6.2.0 → v6.3.0

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Impact

• ✅ Patch update: bug fixes and security patches only
• ✅ No breaking changes

Acceptance Criteria

• All CI checks pass

Testing

• CI gates pass (tests, lint, type checking, security scan)

Notes

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Release Notes

actions/setup-python (actions/setup-python)

v6.3.0

Compare Source

What's Changed

Enhancement

• Add RHEL support and include Linux distro in cache keys by @​priyagupta108 in #​1323
• Fix pip cache error handling on Windows by @​priyagupta108 in #​1040

Dependency update

• Upgrade minimatch from 3.1.2 to 3.1.5 by @​dependabot in #​1281
• Upgrade actions dependencies by @​gowridurgad with @​Copilot in #​1303
• Upgrade @​actions/cache to 5.1.0, log cache write denied by @​jasongin in #​1324
• Upgrade dependency versions and test workflow configuration by @​HarithaVattikuti in #​1322

Documentation

• Update advanced-usage.md by @​Dunky-Z in #​811

New Contributors

• @​gowridurgad with @​Copilot made their first contribution in #​1303
• @​jasongin made their first contribution in #​1324
• @​Dunky-Z made their first contribution in #​811

Full Changelog: actions/setup-python@v6...v6.3.0

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📥 Commits

Reviewing files that changed from the base of the PR and between 9f686a6 and a9610cd.

📒 Files selected for processing (8)

• .github/workflows/ci.yml
• .github/workflows/codeql.yml
• .github/workflows/scheduled-validation.yml
• .github/workflows/test-template.yml
• .github/workflows/validate-template.yml
• {{cookiecutter.project_slug}}/.github/workflows/pr-validation.yml
• {{cookiecutter.project_slug}}/.github/workflows/slsa-provenance.yml
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• Commit unit tests in branch renovate/github-actions

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