ci(actions): remove deprecated runtime warnings [Codex]

[jderochervlk]

GitHub Actions was annotating deploy runs because several third-party actions still targeted Node.js 20. Jobs using ubuntu-latest also emitted notices ahead of the Ubuntu 26 migration.

This upgrades Wrangler, sticky PR comments, and artifact upload to Node.js 24-compatible releases. All jobs are pinned to Ubuntu 24.04 so the runner environment remains stable and migration notices stop.

Deployment branch names now enter shell steps through environment variables, preserving URL behavior while avoiding direct interpolation of untrusted GitHub context.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-18T14:29:03.707124Z	db16fd3	New commits

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[github-actions]

Guide Cloudflare deployment

⛅️ wrangler 4.130.0
────────────────────
🌀 Building list of assets...
✨ Read 17 files from the assets directory /home/runner/work/rescript-lang.org/rescript-lang.org/apps/guide/build/client
🌀 Starting asset upload...
No updated asset files to upload. Proceeding with deployment...
Total Upload: 0.31 KiB / gzip: 0.22 KiB
Worker Startup Time: 0 ms
Uploaded guide (1.45 sec)
Worker Version ID: 8e7fef28-d72e-404c-b04b-7a253733bd79
Version Preview URL: https://8e7fef28-guide.rescript.workers.dev
Version Preview Alias URL: https://jvlk-github-actions-updates-guide.rescript.workers.dev

To deploy this version to production traffic use the command wrangler versions deploy

Changes to non-versioned settings (config properties 'logpush' or 'tail_consumers') take effect after your next deployment using the command wrangler versions deploy

Changes to triggers (routes, custom domains, cron schedules, etc) must be applied with the command wrangler triggers deploy

[github-actions]

Cloudflare deployment

Deployement ID: 8cfbc255-702e-43ad-9be1-0f52304aad06
Deployment Environment: preview

⛅️ wrangler 4.130.0
────────────────────
✨ Compiled Worker successfully
Uploading... (8394/8880)
Uploading... (8556/8880)
Uploading... (8718/8880)
Uploading... (8880/8880)
✨ Success! Uploaded 486 files (8394 already uploaded) (5.63 sec)

✨ Uploading _redirects
✨ Uploading Functions bundle
🌎 Deploying...
✨ Deployment complete! Take a peek over at https://8cfbc255.rescript-lang.pages.dev
✨ Deployment alias URL: https://jvlk-github-actions-updates.rescript-lang.pages.dev

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	guide	db16fd3	Commit Preview URL Branch Preview URL	Sep 18 2026, 02:28 PM

[github-actions]

Docs preview