chore: use v3 action

[not-matthias]

No description provided.

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[codspeed-hq]

CodSpeed Performance Report

Merging this PR will create unknown performance changes

_{Comparing latest-codspeed-cpp (3c684e3) with main (a51c76f)¹}

Summary

⚠️ No benchmarks were detected in both the base of the PR and the PR.
Please ensure that your benchmarks are correctly instrumented with CodSpeed.

Check out the benchmarks creation guide

Footnotes

1. No successful run was found on main (12a3578) during the generation of this report, so a51c76f was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩