chore(deps): update @rsbuild/core to 1.4.0-rc.0

[chenjiahan]

Summary

• Update @rsbuild/core to 1.4.0-rc.0
• Remove dev.progressBar: false, now defaults to false.
• Simplify dev.setupMiddlewares usage, see https://rsbuild.rs/config/dev/setup-middlewares#devsetupmiddlewares

Related Issue

• https://github.com/web-infra-dev/rsbuild/releases/tag/v1.4.0-rc.0

close #2286

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

✅ Deploy Preview for rspress-v2 ready!

Name	Link
🔨 Latest commit	ddbdfa9
🔍 Latest deploy log	https://app.netlify.com/projects/rspress-v2/deploys/685b615a3aed730008b2b9cb
😎 Deploy Preview	https://deploy-preview-2315--rspress-v2.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[netlify]

✅ Deploy Preview for rspress ready!

Name	Link
🔨 Latest commit	ddbdfa9
🔍 Latest deploy log	https://app.netlify.com/projects/rspress/deploys/685b615a3aed730008b2b9c7
😎 Deploy Preview	https://deploy-preview-2315--rspress.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 90 (🔴 down 6 from production) Accessibility: 97 (no change from production) Best Practices: 92 (🟢 up 9 from production) SEO: 100 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify project configuration.