chore: split canary to separate scope

[hardfist]

Summary

use separate token and scope for canary release for security reason

Checklist

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

[netlify]

✅ Deploy Preview for rspack canceled.

Name	Link
🔨 Latest commit	79632c0
🔍 Latest deploy log	https://app.netlify.com/sites/rspack/deploys/676a421fa0082800085a5764

[codspeed-hq]

CodSpeed Performance Report

Merging #8828 will not alter performance

_{Comparing yj/split-release-canary (79632c0) with main (4da33a8)}

🎉 Hooray! codspeed-rust just leveled up to 2.7.2!

A heads-up, this is a breaking change and it might affect your current performance baseline a bit. But here's the exciting part - it's packed with new, cool features and promises improved result stability 🥳!
Curious about what's new? Visit our releases page to delve into all the awesome details about this new version.

Summary

✅ 3 untouched benchmarks