Cherry-pick #24648 to 7.x: Skip TestActions for Auditbeat on darwin/amd64

[andrewkroh]

Cherry-pick of PR #24648 to 7.x branch. Original message:

What does this PR do?

This skips TestActions, TestExcludedFiles, and TestIncludedExcludedFiles on darwin/amd64.
I could not reproduce this on my local macbook, but it's failing in the CI environment.

#24637

Why is it important?

CI should be green.

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

How to test this PR locally

Related issues

• Relates Flaky Test [Build&Test / auditbeat-macos-macosx&&x86_64 / TestActions – github.com/elastic/beats/v7/auditbeat/module/file_integrity] #24637

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[elasticmachine]

💚 Build Succeeded

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Build stats

• Build Cause: Pull request #24649 opened

• Start Time: 2021-03-18T22:21:52.899+0000

• Duration: 36 min 37 sec

• Commit: 0952763

Test stats 🧪

Test	Results
Failed	0
Passed	1003
Skipped	217
Total	1220

Trends 🧪

💚 Flaky test report

Tests succeeded.

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Test stats 🧪

Test	Results
Failed	0
Passed	1003
Skipped	217
Total	1220