chore(deps): update dependency @codspeed/vitest-plugin to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@codspeed/vitest-plugin (source)	^3.1.1 -> ^4.0.0

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Release Notes

CodSpeedHQ/codspeed-node (@​codspeed/vitest-plugin)

v4.0.0

Compare Source

🎉 What's Changed

This major release aims to reduce variance in the measurements, by updating the V8 flags and forcing other optimizations.

🚀 Migration Path

This is a breaking change and it will affect your current performance baseline. But updating will improve result stability!

We recommend you create a standalone PR to update the @codspeed/* dependencies, acknowledge the potential regressions, and merge it to update the baseline on your default branch.

📚 Details

• ci: bump actions/checkout to v4 by @​fargito in https://github.com/CodSpeedHQ/codspeed-node/pull/39
• feat!: update V8 flags and force optimization by @​adriencaccia in https://github.com/CodSpeedHQ/codspeed-node/pull/41

Full Changelog: CodSpeedHQ/codspeed-node@v3.1.1...v4.0.0

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Configuration

📅 Schedule: Branch creation - "* 0-3 * * 1" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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[codspeed-hq]

CodSpeed Performance Report

Merging #563 will improve performances by 15.11%

_{Comparing renovate/codspeed-vitest-plugin-4.x (5092013) with main (6e9845e)}

🎉 Hooray! codspeed-node just leveled up to 4.0.0!

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

⚡ 1 improvements
✅ 4 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	renovate/codspeed-vitest-plugin-4.x	Change
⚡	examples/express-plugin	115.4 ms	100.2 ms	+15.11%