ci: keep release candidate in draft for tests before tag

[zimeg]

Changelog

N/A — no user-facing changes.

Summary

This pull request creates the release candidate PR as a draft so it can be manually marked ready for review when appropriate.

Preview

N/A

Testing

Verify the next release workflow run creates a draft PR instead of a ready-for-review PR.

Notes

N/A

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.67%. Comparing base (c693443) to head (2ce7c08).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #567 +/- ##
=======================================
Coverage 71.66% 71.67% =======================================
Files 226 226 Lines 19115 19115 =======================================
+ Hits 13699 13700 +1 - Misses 4209 4210 +1 + Partials 1207 1205 -2 

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[zimeg]

📸 Preview: #553!

[Copilot]

Pull request overview

This PR updates the GitHub Actions release workflow so that newly created release-candidate pull requests are opened as drafts, allowing maintainers to mark them “ready for review” manually when appropriate.

Changes:

• Add --draft to the gh pr create invocation used when creating a new release PR.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[mwbrooks]

✅ Thanks for updating this! 🙇🏻 📂

[zimeg]

@mwbrooks Of course! Whatever we can do for best processes 💌 ✨