[8.5](backport #2410) Update wget command

[mergify]

This is an automatic backport of pull request #2410 done by Mergify.
Cherry-pick of 60894cb has failed:

On branch mergify/bp/8.5/pr-2410
Your branch is up to date with 'origin/8.5'.

You are currently cherry-picking commit 60894cb6.
  (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)

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   docs/en/ingest-management/elastic-agent/configuration/autodiscovery/kubernetes-hints-autodiscover.asciidoc

no changes added to commit (use "git add" and/or "git commit -a")

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

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[dedemorton]

Closing because source file does not yet exist in 8.5