[rsa2elk/cyberark] Upgrade to ECS 8.0.0

[adriansr]

Automated PR.

Upgrades rsa2elk package to ECS 8.0.0.

[elasticmachine]

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

[elasticmachine]

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Build stats

• Start Time: 2022-01-25T16:32:08.190+0000

• Duration: 19 min 34 sec

• Commit: aa9df86

Test stats 🧪

Test	Results
Failed	0
Passed	7
Skipped	0
Total	7

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