chore: Add a global config to enable pprof

[jschwinger233]

Background

This PR adds a new global config pprof_port to specify (and enable/disable) pprof server. Users can also enable or disable pprof on the fly using dae reload.

Checklist

• [ ] The Pull Request has been fully tested
• [ ] There's an entry in the CHANGELOGS
• [ ] There is a user-facing docs PR against https://github.com/daeuniverse/dae

Full Changelogs

• [Implement ...]

Issue Reference

Closes #[issue number]

Test Result

[mzz2017]

我之前测试的时候发现引入 http 包会带来比较大的二进制大小膨胀，可以麻烦测试一下吗？

[jschwinger233]

@mzz2017 我对比了下 PR build: https://github.com/daeuniverse/dae/actions/runs/9441996291?pr=532

Arch	With pprof	Without pprof
arm64	11MB	10.7MB
x64	11.6MB	11.3MB

会增加 0.3MB 大小

[dae-prow[bot]]

❌ Your branch is currently out-of-sync to main. No worry, I will fix it for you.

[dae-prow[bot]]

❌ Your branch is currently out-of-sync to main. No worry, I will fix it for you.

[mzz2017]

LGTM