fix: GitHub Actions release workflow — add write permission and Node …

…24 opt-in

- Change 'contents: read' to 'contents: write' for softprops/action-gh-release to create GitHub Release
- Add FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true to opt in early (June 16 deadline)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>