tune performance when executing on macOs

[shouze]

This simple tuning can lead to at least 30% gain in action execution time, up to twice faster than without it 😉

act/actions/runner_exec.go

Line 157 in 308162e

fmt.Sprintf("%s:%s", runner.config.WorkingDir, "/github/workspace"),

if runtime.GOOS == "darwin" {
    // add `:delegated` at the end of the workspace volume string
    // see https://docs.docker.com/docker-for-mac/osxfs-caching/#tuning-with-consistent-cached-and-delegated-configurations
}