chore(cargo-codspeed): set verbosity to normal

[Boshen]

Summary

cargo codspeed is printing with --verbose, which fills the log with lots of compilation messages that are uninteresting to normal users.

e.g. build benchmark step in https://github.com/web-infra-dev/oxc/actions/runs/6095539763/job/16539311128

This PR sets the verbosity to normal.

Test Plan

I ran the built binary on my project and sees no compilation messages.

[art049]

Great, thank you! Merging this as well!

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #15 will degrade performances by 12.44%

_{Comparing Boshen:verbose (1621b66) with main (87506ab)}

Summary

❌ 2 (👁 2) regressions ✅ 52 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	Boshen:verbose	Change
👁	Auto	195.6 ns	223.3 ns	-12.44%
👁	Linear	195.6 ns	223.3 ns	-12.44%