[8.16](backport #41524) update elastic-agent-system-metrics

[mergify]

Bump elastic-agent-system-metrics

This is to include elastic/elastic-agent-system-metrics#186, which is a bug fix for darwin based systems.

---

This is an automatic backport of pull request #41524 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of c07fffe has failed:

On branch mergify/bp/8.16/pr-41524
Your branch is up to date with 'origin/8.16'.

You are currently cherry-picking commit c07fffe74a.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   NOTICE.txt

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   go.mod
	both modified:   go.sum

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[elasticmachine]

Pinging @elastic/elastic-agent-data-plane (Team:Elastic-Agent-Data-Plane)