chore(ci): use github-hosted runner for publishing

[gabrielmfern]

Provenance is not supported on runners that aren't hosted by GitHub, so I think it's worth it for us to use GItHub's just for the release workflow.

https://github.com/resend/react-email/actions/runs/21676909109/job/62499778929

---

Summary by cubic

Switch the release workflow to a GitHub-hosted runner to enable npm provenance when publishing packages. Updated runs-on to ubuntu-latest in .github/workflows/release.yml.

^{Written for commit da3e273. Summary will update on new commits.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
react-email	Ready	Preview, Comment	Feb 4, 2026 3:22pm
react-email-demo	Ready	Preview, Comment	Feb 4, 2026 3:22pm

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Latest commit: da3e273

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	next@​16.1.6
	@​types/​nodemailer@​6.4.22
	@​plunk/​node@​3.0.3
	@​sendgrid/​mail@​7.7.0
	postmark@​3.11.0
	@​react-email/​components@​0.0.36
	mailersend@​2.6.0
	nodemailer@​7.0.13
	react-dom@​19.2.4
	@​aws-sdk/​client-ses@​3.982.0
	resend@​4.8.0

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[socket-security]

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert  (click "▶" to expand/collapse)
Warn		Install-time scripts: npm sharp during install Install script: install Source: node install/check.js || npm run build From: ? → npm/next@16.1.6 → npm/sharp@0.34.5 ℹ Read more on: This package | This alert | What is an install script? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not be running non-essential scripts during install and there are often solutions to problems people solve with install scripts that can be run at publish time instead. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/sharp@0.34.5. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.