ci: build musl targets for cargo-codspeed binary artifacts#80

GuillaumeLagrange merged 2 commits intomainCodSpeedHQ/codspeed-rust:mainfrom

cod-594-codspeed-28-hangs-or-kills-in-the-ci-runnerCodSpeedHQ/codspeed-rust:cod-594-codspeed-28-hangs-or-kills-in-the-ci-runnerCopy head branch name to clipboard