chore: upgrade GitHub Actions from Node.js 20 to Node.js 24

[dean0x]

Context

GitHub will force Node.js 24 for all actions starting June 2, 2026. Our CI and release workflows currently use actions running on Node.js 20, which trigger deprecation warnings on every run.

Affected Actions

CI workflow (.github/workflows/ci.yml)

• actions/checkout@v4

Release workflow (.github/workflows/release.yml)

• actions/checkout@v4
• actions/upload-artifact@v4
• actions/download-artifact@v4
• actions/setup-node@v4
• softprops/action-gh-release@v2

Action Required

1. Check for updated versions of each action that support Node.js 24
2. Bump version pins in both workflow files
3. Optionally set FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true to validate before the forced migration

References

• GitHub deprecation notice
• Warnings first observed in v1.4.0 release run: https://github.com/dean0x/mino/actions/runs/23072669299