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

[mergify]

This is an automatic backport of pull request #32754 done by Mergify.

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[elasticmachine]

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• Start Time: 2022-08-31T19:54:51.800+0000

• Duration: 89 min 39 sec

Test stats 🧪

Test	Results
Failed	0
Passed	22695
Skipped	1947
Total	24642

💚 Flaky test report

Tests succeeded.

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