[Auditbeat] Upgrade to go-libaudit v2.3.1

[andrewkroh]

What does this PR do?

Upgraded github.com/elastic/go-libaudit/v2 v2.3.1-0.20220629014624-b10731ae427c => v2.3.1

See https://github.com/elastic/go-libaudit/releases/tag/v2.3.1.

Why is it important?

Fixes issues in Auditbeat.

• auditd module: Fix parsing of audit rules where arguments are quoted (like file paths containing spaces).
• auditd module: Fix minimum AuditStatus length so that library can support kernels from 2.6.32.

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.

[elasticmachine]

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

[elasticmachine]

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Build stats

• Start Time: 2022-07-20T16:34:48.123+0000

• Duration: 153 min 3 sec

Test stats 🧪

Test	Results
Failed	0
Passed	22483
Skipped	1937
Total	24420

💚 Flaky test report

Tests succeeded.

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