[7.17](backport #32754) action: checks for x-pack/libbeat and libbeat

[mergify]

This is an automatic backport of pull request #32754 done by Mergify.
Cherry-pick of d1aaef0 has failed:

On branch mergify/bp/7.17/pr-32754
Your branch is up to date with 'origin/7.17'.

You are currently cherry-picking commit d1aaef0baa.
  (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:
	new file:   .github/workflows/check-libbeat.yml
	new file:   .github/workflows/check-xpack-libbeat.yml
	modified:   .github/workflows/opentelemetry.yml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   libbeat/Jenkinsfile.yml
	both modified:   x-pack/libbeat/Jenkinsfile.yml

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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[elasticmachine]

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• Start Time: 2022-09-01T08:17:50.849+0000

• Duration: 78 min 42 sec

Test stats 🧪

Test	Results
Failed	0
Passed	22149
Skipped	1563
Total	23712

💚 Flaky test report

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